Repository logo
  • English
  • 中文
Log In
Have you forgotten your password?
  1. Home
  2. College of Science / 理學院
  3. Physics / 物理學系
  4. Multiferroic Double Perovskites ScFe1-xCrx O3 (1 /6?x?5 /6) for Highly Efficient Photovoltaics and Spintronics MULTIFERROIC DOUBLE PEROVSKITES ScFe1-xCr ... CAI et al.
 
  • Details

Multiferroic Double Perovskites ScFe1-xCrx O3 (1 /6?x?5 /6) for Highly Efficient Photovoltaics and Spintronics MULTIFERROIC DOUBLE PEROVSKITES ScFe1-xCr ... CAI et al.

Journal
Physical Review Applied
Journal Volume
8
Journal Issue
3
Date Issued
2017
Author(s)
Cai T.-Y.
Liu S.-C.
Ju S.
Liu C.-Y.
Guo G.-Y.  
DOI
10.1103/PhysRevApplied.8.034034
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85030090772&doi=10.1103%2fPhysRevApplied.8.034034&partnerID=40&md5=ab9291baf33ba31196c95e52127c0f4a
https://scholars.lib.ntu.edu.tw/handle/123456789/407250
Abstract
Ferroelectric oxides are attractive materials for constructing efficient solar cells. Nevertheless, a wide band gap of nearly 3.0 eV in these ferroelectric oxides would result in poor overall sunlight absorption and, hence, low energy conversion efficiency. Here, by systematic first-principles density-functional calculations, we demonstrate that double-perovskite semiconductors ScFe1-xCrxO3 (1/6≤x≤5/6) with a narrow band gap of approximately 1.8 eV would simultaneously exhibit large ferroelectric polarization (100 μC/cm2) and ferrimagnetic magnetization (170 emu/cm3). Within a Schottky-based model for a typical sandwich solar-cell structure, a power-conversion efficiency of 9.0% can be reached by neglecting all other sources of photovoltaicity in ferroelectric materials. This value is larger than the largest value of 8.1% observed in ferroelectric oxides. Furthermore, these double perovskites are found to be single-spin semiconductors, and the obtained photocurrent is fully spin polarized over almost the entire Sun spectrum. These fascinating advantages would make ScFexCr1-xO3 (1/6≤x≤5/6) semiconductors promising candidates for highly efficient solar cells and spin photovoltaic devices. © 2017 American Physical Society.
SDGs

[SDGs]SDG7

Other Subjects
Calculations; Conversion efficiency; Energy gap; Ferroelectricity; Narrow band gap semiconductors; Perovskite; Solar cells; Solar power generation; Ternary alloys; Thallium alloys; Wide band gap semiconductors; Double perovskites; Ferroelectric oxides; Ferroelectric polarization; First-principles density functional calculations; Fully spin-polarized; Power conversion efficiencies; Solar cell structures; Spin photovoltaic; Ferroelectric materials
Publisher
American Physical Society
Type
journal article

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

總館學科館員 (Main Library)
醫學圖書館學科館員 (Medical Library)
社會科學院辜振甫紀念圖書館學科館員 (Social Sciences Library)

開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

  • 請確認所上傳的全文是原創的內容,若該文件包含部分內容的版權非匯入者所有,或由第三方贊助與合作完成,請確認該版權所有者及第三方同意提供此授權。
    Please represent that the submission is your original work, and that you have the right to grant the rights to upload.
  • 若欲上傳已出版的全文電子檔,可使用Open policy finder網站查詢,以確認出版單位之版權政策。
    Please use Open policy finder to find a summary of permissions that are normally given as part of each publisher's copyright transfer agreement.
  • 網站簡介 (Quickstart Guide)
  • 使用手冊 (Instruction Manual)
  • 線上預約服務 (Booking Service)
  • 方案一:臺灣大學計算機中心帳號登入
    (With C&INC Email Account)
  • 方案二:ORCID帳號登入 (With ORCID)
  • 方案一:定期更新ORCID者,以ID匯入 (Search for identifier (ORCID))
  • 方案二:自行建檔 (Default mode Submission)
  • 方案三:學科館員協助匯入 (Email worklist to subject librarians)

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science