https://scholars.lib.ntu.edu.tw/handle/123456789/407250
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cai T.-Y. | en_US |
dc.contributor.author | Liu S.-C. | en_US |
dc.contributor.author | Ju S. | en_US |
dc.contributor.author | Liu C.-Y. | en_US |
dc.contributor.author | Guo G.-Y. | en_US |
dc.creator | Liu C.-Y.;Ju S.;Liu S.-C.;Cai T.-Y.;Guo G.-Y. | - |
dc.date.accessioned | 2019-05-10T07:19:56Z | - |
dc.date.available | 2019-05-10T07:19:56Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 23317019 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85030090772&doi=10.1103%2fPhysRevApplied.8.034034&partnerID=40&md5=ab9291baf33ba31196c95e52127c0f4a | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/407250 | - |
dc.description.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. | - |
dc.publisher | American Physical Society | - |
dc.relation.ispartof | Physical Review Applied | en_US |
dc.subject.classification | [SDGs]SDG7 | - |
dc.subject.other | 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 | - |
dc.title | 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. | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1103/PhysRevApplied.8.034034 | - |
dc.identifier.scopus | 2-s2.0-85030090772 | - |
dc.relation.journalvolume | 8 | - |
dc.relation.journalissue | 3 | - |
item.fulltext | no fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.grantfulltext | none | - |
crisitem.author.dept | Physics | - |
crisitem.author.orcid | 0000-0003-3097-0916 | - |
crisitem.author.parentorg | College of Science | - |
Appears in Collections: | 物理學系 |
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