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dc.contributor.authorWu, Tsung-Taen_US
dc.contributor.authorHu, Fanen_US
dc.contributor.authorHuang, Jyun-Hongen_US
dc.contributor.authorChang, Chia-hoen_US
dc.contributor.authorLai, Chih-chungen_US
dc.contributor.authorYen, Yu-Tingen_US
dc.contributor.authorHuang, Hou-Yingen_US
dc.contributor.authorHong, Hwen-Fenen_US
dc.contributor.authorWang, Zhiming M.en_US
dc.contributor.authorShen, Chang-Hongen_US
dc.contributor.authorShieh, Jia-Minen_US
dc.contributor.authorChueh, Yu-Lunen_US
dc.date.accessioned2014-12-08T15:35:51Z-
dc.date.available2014-12-08T15:35:51Z-
dc.date.issued2014-04-09en_US
dc.identifier.issn1944-8244en_US
dc.identifier.urihttp://dx.doi.org/10.1021/am405780zen_US
dc.identifier.urihttp://hdl.handle.net/11536/24240-
dc.description.abstractA nontoxic hydrogen-assisted solid Se vapor selenization process (HASVS) technique to achieve a large-area (40 X 30 cm(2)) Cu(In,Ga)Se-2 (CIGS) solar panel with enhanced efficiencies from 7.1 to 10.8% (12.0% for active area) was demonstrated. The remarkable improvement of efficiency and fill factor comes from improved open circuit voltage (V-oc) and reduced dark current due to (1) decreased interface recombination raised from the formation of a widened buried homojunction with n-type Cd-cu participation and (2) enhanced separation of electron and hole carriers resulting from the accumulation of Na atoms on the surface of the CIGS film. The effects of microstructural, compositional, and electrical characteristics with hydrogen-assisted Se vapor selenization, including interdiffusion of atoms and formation of buried homojunction, were examined in detail. This methodology can be also applied to CIS (CuInSe2) thin film solar cells with enhanced efficiencies from 5.3% to 8.5% (9.4% for active area) and provides a facile approach to improve quality of CIGS and stimulate the nontoxic progress in the large scale CIGS PV industry.en_US
dc.language.isoen_USen_US
dc.subjectCu(In,Ga)Se-2en_US
dc.subjecthydrogen-assisted selenizationen_US
dc.subjectburied homojunctionen_US
dc.subjectNa diffusionen_US
dc.titleImproved Efficiency of a Large-Area Cu(In,Ga)Se-2 Solar Cell by a Nontoxic Hydrogen-Assisted Solid Se Vapor Selenization Processen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/am405780zen_US
dc.identifier.journalACS APPLIED MATERIALS & INTERFACESen_US
dc.citation.volume6en_US
dc.citation.issue7en_US
dc.citation.spage4842en_US
dc.citation.epage4849en_US
dc.contributor.department光電學院zh_TW
dc.contributor.department影像與生醫光電研究所zh_TW
dc.contributor.departmentCollege of Photonicsen_US
dc.contributor.departmentInstitute of Imaging and Biomedical Photonicsen_US
dc.identifier.wosnumberWOS:000334572800030-
dc.citation.woscount1-
Appears in Collections:Articles


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