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EBSCO Open Dissertations

EBSCO Open Dissertations makes electronic theses and dissertations (ETDs) more accessible to researchers worldwide. The free portal is designed to benefit universities and their students and make ETDs more discoverable. 

Increasing Discovery & Usage of ETD Research

EBSCO Open Dissertations is a collaboration between EBSCO and BiblioLabs to increase traffic and discoverability of ETD research. You can join the movement and add your theses and dissertations to the database, making them freely available to researchers everywhere while increasing traffic to your institutional repository. 

EBSCO Open Dissertations extends the work started in 2014, when EBSCO and the H.W. Wilson Foundation created American Doctoral Dissertations which contained indexing from the H.W. Wilson print publication, Doctoral Dissertations Accepted by American Universities, 1933-1955. In 2015, the H.W. Wilson Foundation agreed to support the expansion of the scope of the American Doctoral Dissertations database to include records for dissertations and theses from 1955 to the present.

How Does EBSCO Open Dissertations Work?

Your ETD metadata is harvested via OAI and integrated into EBSCO’s platform, where pointers send traffic to your IR.

EBSCO integrates this data into their current subscriber environments and makes the data available on the open web via opendissertations.org .

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Global ETD Search

Search the 6,481,469 electronic theses and dissertations contained in the NDLTD archive:

The archive supports advanced filtering and boolean search.

ProQuest Dissertations & Theses Global

• What is ProQuest Dissertations & Theses Global
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ProQuest Dissertations & Theses Global   is a wealth of unique global scholarship, which is a credible and quality source to Uncover the Undiscovered research insights and intelligence in easiest and most effective ways. The equitable discoverability of more than 5.8 million dissertations and theses with coverage from year 1637, allows researchers to amplify diverse voices and place their research in a global context. The database offers nearly 3.2 million full texts for most of the dissertations added since 1997.

By leveraging the rich citation data found in ProQuest Dissertations & Theses Global and with new citation insight tool, researchers can benefit from focused pathways of discovery to build foundational knowledge on various research topics. Over 200,000 new dissertations and theses are added to the database each year to enrich the citation data continuously.

For more information about the ProQuest Dissertations & Theses Global , navigate to the Content Page .

ProQuest Dissertations & Theses Global   Database  is also part of ProQuest One Academic .  ProQuest Dissertations & Theses Global resides on the ProQuest Platform. For more information about the ProQuest Platform search and display features, see the  ProQuest Platform LibGuide .

The Dissertations Bootcamp eLearning Modules are a free resource that help support graduate student planning, writing, and research.

ProQuest Dissertations and Theses for the Student, Citation Connections

Here you can have a preview of the new features just launched for the Cited Reference documents in ProQuest Dissertations & Theses Global.

ProQuest Dissertations and Theses for the Librarian

Intended for Librarians who want to learn how to use the database's advanced search to support subject area research at their institution. Duration: 2 minutes.

ProQuest Dissertations and Theses for the Student, Searching Titles and Languages

This session reviews how Students, both Masters or PhD, can use the database's advanced search to identify known dissertations by title and search/analyze by languages other than English. Duration: 3 minutes.

ProQuest Dissertations and Theses for the Student, Searching Names

This session reviews how Students, both Masters or Ph, can use the database's advanced search to identify dissertations of known Authors or Advisors and further refine/analyze them. Duration: 4 minutes.

ProQuest Dissertations and Theses for the Student, Cited References

This session reviews how Students, both Masters or PhD, can use the dissertations to retrieve and explore further the Cited References. Duration: 4 minutes.

ProQuest Dissertations and Theses for the Student, Supplemental Files

This session reviews how Students, both Masters or PhD, can identify dissertations with Supplemental files which may contain useful materials for their graduate work. Duration: 3.5 minutes.

ProQuest Dissertations and Theses for the Student, Subject Searching

This session will show Students, both Masters or PhD, some Search techniques both Basic and Advanced to locate dissertations on a certain topic. Duration: 5.5 minutes.

Webinar Title : Best Practices for Searching ProQuest Dissertations and Theses Global

This session demonstrates how users can utilize the best practices of searching the " ProQuest Dissertations and Theses Global  database" to connect with relevant information for their academic work. Duration:  52 minutes.

Materials in English - Figures (Database size) and Platform features images now updated as of March 2023

• PQDT Global Basic Version PPT
• PQDT Global Advanced Version PPT
• PQDT Global Citation Connection PPT
• ProQuest ETD Dissemination Program
• ProQuest Dissertations & Theses Citation Index Training Assest: ProQuest Dissertations & Theses Citation Index PPT- May 2024
• Marketing Toolkit
• New! Embedded eLearning for Undergraduates
• Request Training
• Top Dissertations
• ProQuest Dissertations & Theses Citation Index
• FAQ- What’s New for PQDT
• ProQuest Dissertations & Theses Global Data Used in Research Projects
• New Change in ProQuest Dissertations & Theses Global (PQDT) Structure and its Impact on Usage Reports in 2023
• New Change in ProQuest Dissertations & Theses Global (PQDT) Structure and its Impact on Saved Searches & Alerts
• Best Practices for Incorporating ProQuest Dissertations & Theses Global Product into EBSCO Discovery
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• Last Updated: May 4, 2024 10:06 AM
• URL: https://proquest.libguides.com/pqdt

ProQuest™ Dissertations & Theses Citation Index

The ProQuest™ Dissertations & Theses Citation Index (PQDT) is the world's most comprehensive curated collection of multi-disciplinary dissertations and theses, offering over 5.5 million records representing dissertations and theses from thousands of universities around the world.

Extending from they early 1600s to present, PQDT coverage is broadly multidisciplinary and includes foundational research in the life sciences, mathematics, computer science, engineering, social sciences, and humanities. Within dissertations and theses is a wealth of scholarship, yet it is often overlooked because most go unpublished.

Key Features

The ProQuest Dissertations & Theses Citation Index will be a standalone database and included in an All Databases search by default. WoS users also have filter options available in each search so that they can search broadly and then narrow focus on a particular collection, subject category, document type, etc. If a user wants to locate dissertations or theses specifically, they can also search of ProQuest Dissertations & Theses Citation Index only.

Standalone and aggregated search

PQDT is included in ALL Database search and can also be searched as a unique collection.

Track citation activity in Web of Science Core Collection

Dissertations and theses that have been cited by Web of Science Core Collection records will include a citation count and a link to the citing articles.

Claim dissertation or theses to a Web of Science Researcher Profiles

Researchers can manually claim their dissertation or thesis to their Web of Science Researcher Profile and make it part of the public view of their profile.

Links to Full Text of dissertations and theses on ProQuest platform

Institutions that subscribe to PQDT Global on the ProQuest platform will be able to link directly to their entitled full text.

Note: ProQuest Dissertation and Theses Citation Index will be released to customers in two phases. Phase 1: In July 2023, ProQuest Dissertations and Theses Citation Index will go live with metadata records for 5.5+ million dissertations and theses. The records will not include cited reference indexing, which means that functionality such as Related Records and Cited References lists and associated navigation will not display. Phase 2: In late 2023, Linked Cited References lists and Related Records will be released to fully connect dissertations to the Web of Science citation network. If you have any questions regarding PQDT entitlement or functionality, please contact the Web of Science support team .

The Networked Digital Library of Theses and Dissertations (NDLTD) is an international organization dedicated to promoting the adoption, creation, use, dissemination, and preservation of electronic theses and dissertations (ETDs). We support electronic publishing and open access to scholarship in order to enhance the sharing of knowledge worldwide.

Etd 2024 call for proposals extended.

In response to numerous request, the paper/poster abstract and workshop proposal submission deadline for the ETD 2024 symposium has been extended to May 17 2024. It is hoped that this will give additional potential authors enough time to submit their work.

The Call for Papers for ETD2024 is now open!

27th International Symposium on Electronic Theses and Dissertations *Electronic Thesis and Dissertation Visibility at a Global Scale* /Join us, along with global leaders, from Wednesday, October 30th to Friday, November 1st, in Livingstone, Zambia./ The theme for ETD 2024 is “Electronic Thesis …

ETD 2024 Announcement

We are thrilled to announce that the 27th International Symposium on Electronic #Theses and #Dissertations (#ETD2024) will take place on October 30th to November 1st in Livingstone, Zambia. Hosted by The University Of Zambia (UNZA), Higher Education Authority of Zambia and Zambia Research and Education Network together with …

We are thrilled to announce that the 27th International Symposium on Electronic #Theses and #Dissertations (#ETD2024) will take place on October 30th to November 1st in Livingstone, Zambia.  Hosted by The University Of Zambia (UNZA), Higher Education Authority of Zambia and Zambia Research and Education Network together with NDLTD.  …

USETDA 2024 Conference September 25-27, 2024 in Provo, Utah

  The USETDA 2024 Conference will be held September 25-27, 2024 as a hybrid event in Provo, Utah on the campus of Brigham Young University and the Provo Marriott Hotel. For details visit https://www.usetda.org/usetda-conferences/usetda-2024/. Call for proposals. Important Dates Call for proposals …

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Open Access Theses and Dissertations (OATD)

OATD.org provides open access graduate theses and dissertations published around the world. Metadata (information about the theses) comes from over 1100 colleges, universities, and research institutions. OATD currently indexes 6,654,285 theses and dissertations.

EBSCO Open Dissertations

Search millions of electronic theses and dissertations (etds).

With EBSCO Open Dissertations, institutions and students are offered an innovative approach to driving additional traffic to ETDs in institutional repositories. Our goal is to help make their students’ theses and dissertations as widely visible and cited as possible.

This approach extends the work started in 2014, when EBSCO and the H.W. Wilson Foundation created American Doctoral Dissertations which contained indexing from the H.W. Wilson print publication, Doctoral Dissertations Accepted by American Universities, 1933-1955. In 2015, the H.W. Wilson Foundation agreed to support the expansion of the scope of the American Doctoral Dissertations database to include records for dissertations and theses from 1955 to the present.

Get involved in the EBSCO Open Dissertations project and make your electronic theses and dissertations freely available to researchers everywhere. Please contact Margaret Richter for more information.

Open Access Theses and Dissertations

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Open Access Theses & Dissertations (OATD)

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An index of over 1.6 million electronic theses and dissertations (ETDs). To the extent possible, the index is limited to records of graduate-level theses that are freely available online.

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Open Access Theses and Dissertations

Thursday, April 18, 8:20am (EDT): Searching is temporarily offline. We apologize for the inconvenience and are working to bring searching back up as quickly as possible.

Advanced research and scholarship. Theses and dissertations, free to find, free to use.

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Browse by author name (“Author name starts with…”).

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October 3, 2022. OATD is dealing with a number of misbehaved crawlers and robots, and is currently taking some steps to minimize their impact on the system. This may require you to click through some security screen. Our apologies for any inconvenience.

Recent Additions

See all of this week’s new additions.

About OATD.org

OATD.org aims to be the best possible resource for finding open access graduate theses and dissertations published around the world. Metadata (information about the theses) comes from over 1100 colleges, universities, and research institutions . OATD currently indexes 7,253,551 theses and dissertations.

About OATD (our FAQ) .

Visual OATD.org

We’re happy to present several data visualizations to give an overall sense of the OATD.org collection by county of publication, language, and field of study.

You may also want to consult these sites to search for other theses:

• Google Scholar
• NDLTD , the Networked Digital Library of Theses and Dissertations. NDLTD provides information and a search engine for electronic theses and dissertations (ETDs), whether they are open access or not.
• Proquest Theses and Dissertations (PQDT), a database of dissertations and theses, whether they were published electronically or in print, and mostly available for purchase. Access to PQDT may be limited; consult your local library for access information.

Harvard University Theses, Dissertations, and Prize Papers

The Harvard University Archives ’ collection of theses, dissertations, and prize papers document the wide range of academic research undertaken by Harvard students over the course of the University’s history.

Beyond their value as pieces of original research, these collections document the history of American higher education, chronicling both the growth of Harvard as a major research institution as well as the development of numerous academic fields. They are also an important source of biographical information, offering insight into the academic careers of the authors.

Spanning from the ‘theses and quaestiones’ of the 17th and 18th centuries to the current yearly output of student research, they include both the first Harvard Ph.D. dissertation (by William Byerly, Ph.D . 1873) and the dissertation of the first woman to earn a doctorate from Harvard ( Lorna Myrtle Hodgkinson , Ed.D. 1922).

Other highlights include:

• The collection of Mathematical theses, 1782-1839
• The 1895 Ph.D. dissertation of W.E.B. Du Bois, The suppression of the African slave trade in the United States, 1638-1871
• Ph.D. dissertations of astronomer Cecilia Payne-Gaposchkin (Ph.D. 1925) and physicist John Hasbrouck Van Vleck (Ph.D. 1922)
• Undergraduate honors theses of novelist John Updike (A.B. 1954), filmmaker Terrence Malick (A.B. 1966),  and U.S. poet laureate Tracy Smith (A.B. 1994)
• Undergraduate prize papers and dissertations of philosophers Ralph Waldo Emerson (A.B. 1821), George Santayana (Ph.D. 1889), and W.V. Quine (Ph.D. 1932)
• Undergraduate honors theses of U.S. President John F. Kennedy (A.B. 1940) and Chief Justice John Roberts (A.B. 1976)

What does a prize-winning thesis look like?

If you're a Harvard undergraduate writing your own thesis, it can be helpful to review recent prize-winning theses. The Harvard University Archives has made available for digital lending all of the Thomas Hoopes Prize winners from the 2019-2021 academic years.

Accessing These Materials

How to access materials at the Harvard University Archives

How to find and request dissertations, in person or virtually

How to find and request undergraduate honors theses

How to find and request Thomas Temple Hoopes Prize papers

How to find and request Bowdoin Prize papers

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Harvard faculty personal and professional archives, harvard student life collections: arts, sports, politics and social life, access materials at the harvard university archives.

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Publications: Dissertations & Theses

Find dissertations & theses.

• Dissertations & Theses @ Walden University The database contains full text of dissertations and theses written by Walden students.
• ProQuest Dissertations & Theses Global The Dissertations and Theses database gives you full text access to over 3 million dissertations and theses from schools and universities around the world, including Walden dissertations. You can choose to search either all the dissertations and theses, or just those created at Walden.

Find dissertations by topic, degree, or chair

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Home > ETD

Theses and Dissertations

Theses and Dissertations Available from ProQuest

Full text is available to Purdue University faculty, staff, and students on campus through this site. No login is required.

Off-campus Purdue users may download theses and dissertations by logging into the Libraries' proxy server with your Purdue Career Account. Links to log in to the proxy server directly below the download button of each thesis or dissertation page.

Non-Purdue users, may purchase copies of theses and dissertations from ProQuest or talk to your librarian about borrowing a copy through Interlibrary Loan. (Some titles may also be available free of charge in our Open Access Theses and Dissertations Series, so please check there first.)

Access to abstracts is unrestricted.

Open Access Theses

This series contains theses that students have wished to make openly available. The full content is available to all, although some theses may have embargoes. If an embargo exists the date will be listed instead of the download button. The download button will appear once a thesis is no longer embargoed. To browse a fuller listing of theses from Purdue please visit the Theses and Dissertations Available from ProQuest series.

Open Access Dissertations

This series contains open access dissertations that students have wished to make openly available. The full-text content is available to all, although some theses may have embargoes. If an embargo exists the date will be listed instead of the download button. The download button will appear once a dissertation is no longer embargoed. To browse a fuller listing of dissertations from Purdue please visit the Theses and Dissertations Available from ProQuest series.

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Available Formats

Electronic copies.

As of September 2010 all doctoral dissertations and masters theses are submitted to the  Proquest Dissertations & Theses database. Electronic copies of doctoral dissertations began to be available in 1997 while masters theses began to be available in September 2010. After a dissertation or thesis is submitted to Graduate Studies, it can take up to several months for it to appear in the database.

As of Spring Quarter 2021, theses and dissertations are also submitted to eScholarship .

Paper Copies

Masters theses from mid-2003 to September 2010 are located in the Shields Library book stacks.

Microfiche Copies

UC Davis theses and dissertations issued between 1978 and mid-2003 are available for use in the Microcopy Collection, Lower Level, Shields Library. Microfiche copies are available for inter-library loan and for reading, copying, or scanning within the library.

Archival Copies

UC Davis theses and dissertations issued before 1978 are typically only available in Special Collections. These are stored offsite and are for use only in the Blanchard Special Collections Reading Room. They can be requested at  aeon.library.ucdavis.edu . Turnaround time is 48-72 hours.

Locating Dissertations and Theses

Via uc library search.

UC Davis dissertations and theses can be located via the library’s online catalog,  UC Library Search . The item record will indicate the location of each thesis and dissertation.

Search Tips

Dissertations and theses do not receive standard “subject” headings. Dissertation titles are required to be descriptive, so title word searches are often effective. Another strategy, applicable for dissertations only, is to search in Proquest’s Dissertations & Theses Database (limiting to UC Davis if desired), where one can search titles, abstracts, and subject descriptors.

Note: with our new catalog options, searching by dissertation subject heading is less used, but in case you need to know, UC Davis catalogs its theses and dissertations with a limited subject heading, constructed of the phrase Dissertations, Academic — University of California, Davis plus the name of the department in which the degree is granted, for example:

• Dissertations, Academic — University of California, Davis — Genetics

For 1989 and earlier, use the heading Dissertations, Academic — California plus the name of the department in which the degree is granted, for example:

• Dissertations, Academic — California — Soil science

Via the Dissertations & Theses Database

The  Dissertations & Theses Database  via Proquest includes citations for theses and dissertations from 1861 to the current year. Entries for dissertations from 1980 forward include 350-word abstracts, written by the author. Citations for master’s theses from 1988 forward include 150-word abstracts. UC Davis submits only doctoral dissertations for inclusion in Dissertations & Theses via Proquest.

Search Dissertations & Theses by:

• The keyword of the title or abstract
• School (“Davis,” for example)
• Advisor name
• Other fields

Some UC Davis dissertations are not sent to ProQuest at the request of the author. In such cases, locate the bibliographic record in the UC Library Search online catalog. There may be a microform or print copy available for use, or you may request retrieval of the archival copy via Special Collections.

The Dissertations & Theses database provides access to the complete full-text of all University of California dissertations in addition to UC Davis doctoral dissertations from the year 1997 forward. Free 24-page previews are available for most other university theses and dissertations listed in the database from 1997 forward. Access to the ProQuest database and full-text is limited to UC computer addresses.

How to Obtain PDFs from the Dissertations & Theses Database

When displaying a citation for a dissertation, the Digital Dissertations database will indicate via a “Full text -PDF” button that the dissertation is available for full-text download. Nearly all of the UC dissertations since 1997 are available in full-text format.

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UT Electronic Theses and Dissertations

Permanent URI for this community https://hdl.handle.net/2152/4

This collection contains University of Texas at Austin electronic theses and dissertations (ETDs). The collection includes ETDs primarily from 2001 to the present. Some pre-2001 theses and dissertations have been digitized and added to this collection, but those are uncommon. The library catalog is the most comprehensive list of UT Austin theses and dissertations.

Since 2010, the Office of Graduate Studies at UT Austin has required all theses and dissertations to be made publicly available in Texas ScholarWorks; however, authors are able to request an embargo of up to seven years. Embargoed ETDs will not show up in this collection. Most of the ETDs in this collection are freely accessible to all users, but some pre-2010 works require a current UT EID at point of use. Please see the FAQs for more information. If you have a question about the availability of a specific ETD, please contact [email protected].

Some items in this collection may contain offensive images or text. The University of Texas Libraries is committed to maintaining an accurate and authentic scholarly and historic record. An authentic record is essential for understanding our past and informing the present. In order to preserve the authenticity of the historical record we will not honor requests to redact content, correct errors, or otherwise remove content, except in cases where there are legal concerns (e.g. potential copyright infringement, inclusion of HIPAA/FERPA protected information or Social Security Numbers) or evidence of a clear and imminent threat to personal safety or well-being.

This policy is in keeping with the  American Library Association code of ethics  to resist efforts to censor library resources, and the  Society of American Archivists code of ethics  that states "archivists may not willfully alter, manipulate, or destroy data or records to conceal facts or distort evidence." Please see UT Libraries'  Statement on Harmful Language and Content  for more information.

Authors of these ETDs have retained their copyright while granting the University of Texas Libraries the non-exclusive right to reproduce and distribute their works.

Collections in this Community

• UT Electronic Theses and Dissertations   30995

University Libraries

• Electronic Theses and Dissertations (ETD)

Bill Pillow ( [email protected] )

Appalachian State University Libraries provide students and alumni the opportunity to digitize and host theses and dissertations for purposes of preservation and accessibility in the University’s institutional repository. Only theses and dissertations that have been formally reviewed and accepted by the Defense Committee of the student’s host department will be accepted.

The following highlights will help guide students in the submission process:

Copyright Permission : Contact Scholarly Communications for advice about obtaining copyright permissions, avoiding plagiarism, documenting citations effectively, and relying on fair use in your publications.

Understand Open Access : Depositing your electronic thesis or dissertation into Appalachian State University’s institutional repository means your scholarly research has the potential to be disseminated and accessed worldwide. Consult with Scholarly Communications to discuss options to embargo (block) your work from public access for a fixed period of time if proprietary research (including data) or publication agreements prevent immediate worldwide access.

Writing Support : Consider setting up an appointment with a writing consultant at the University Writing Center .

Citation Management : Experiment with the following citation management tools, such as Endnote , Zotero , and Mendeley , to keep records of citations from research and database searches, improve organization, and streamline the construction of bibliographies.

Research Data : Consult with Digital Scholarship and Initiatives and the Office of Research for advice on curating, managing, and preserving research data for current and future use.

Forms : Prior to acceptance and submission to Appalachian State University's institutional repository, students and alumni must complete the metadata form . Contact Bill Pillow with questions.

Innovation in Energy Storage: Technology, Value, and Cost

Add to collection, downloadable content.

• Affiliation: Gillings School of Global Public Health, Department of Environmental Sciences and Engineering
• Energy storage is a cornerstone to decarbonize energy systems and combat climate change. As renewable energy sources gain greater traction and extreme weather events become more frequent, various energy storage technologies emerge, accompanied by policy supports aimed at fostering their development. Yet, significant gaps persist in the evaluation of costs and values associated with energy storage, particularly emerging long-duration storage and hydrogen technologies, and in the design of policies to support development.This dissertation initiates by conducting a review of commercially available long-duration energy storage technologies. Through iterative interviews with technology suppliers, evaluation metrics are proposed to differentiate technologies from short-duration counterparts, alongside an analysis of suitable use cases for various long-duration energy technologies.Expanding beyond a static, investor-centric perspective, the dissertation delves into a dynamic, multi-stakeholder evaluation. By combining the future evolution of the U.S. electricity grid, the potential for energy arbitrage and emission reduction from marginal energy storage projects across all states from 2022 to 2050 is assessed. This analysis reveals discrepancies among stakeholders and offers policy recommendations to reconcile interests, and evaluate the efficacy of the Inflation Reduction Act (IRA) in promoting storage development.Furthermore, the dissertation hones in on hydrogen technology, complementing the evaluation with a cost perspective. Leveraging a real-world hydrogen projects database, the trajectory of electrolyzer costs—the core equipment for green hydrogen production—is projected under various scenarios considering different learning rates, capacity deployment trajectories and initial capital costs. These projections offer valuable insights for policies aimed at accelerating electrolyzer cost declines.The analysis of hydrogen costs and adoption is then scrutinized in the context of California. By considering the willingness to pay of different hydrogen consumers, demand growth, and the cost of different hydrogen types, a baseline for hydrogen adoption in California is constructed. This baseline aids in assessing the effectiveness of IRA tax credits in accelerating hydrogen adoption, while an alternative policy design is proposed and compared with the IRA approach. This policy design considers the dynamics in technology cost and willingness to pay of consumers, utilizing minimal public resources to achieve high adoption rate of hydrogen.
• Energy storage
• Public policy
• Environmental management
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Materials Horizons

High throughput screening of semiconductors with low lattice thermal transport induced by long-range interactions †.

* Corresponding authors

a Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China E-mail: [email protected]

b School of Physics and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China E-mail: [email protected]

Semiconductors with long-range interactions (LRI) due to resonant bonding exhibit delocalized electronic states and low lattice thermal conductivity, contributing to the efficiency of heat-to-electricity conversion. Here, we build a descriptor for high-throughput screening of LRI materials from the second-order interaction force constants. We identify 75 semiconducting candidates from the binary compounds in the MatHub-3d database that contain LRI. By analyzing the bonding properties of LRI atoms, we classify LRI in materials into two categories: type I and type II. In the structural unit of type I LRI, the atoms have strong bond connections, while a weak bond exists between the two groups in the structural unit of type II LRI. We have identified atypical type I LRI formed by Sb–Sb and Mg–Mg pairs in the emerging thermoelectric material Mg 3 Sb 2 , resulting in the softening of TA 1 phonons and large anharmonicity. For type II LRI, the LRI of Ge–Ge and Se–Se pairs in R 3 m -GeSe can cross different layers. Moreover, we observe a combination of type II LRI and rattling effect in BaSe 2 to restrict thermal transport. This work is of great significance for understanding the relationship between LRI and thermal transport properties, and for designing new LRI-induced low lattice thermal conductivity materials.

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High throughput screening of semiconductors with low lattice thermal transport induced by long-range interactions

Y. Wu, L. Ji, Y. Ding and L. Zhou, Mater. Horiz. , 2024, Advance Article , DOI: 10.1039/D4MH00363B

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