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dc.contributor.authorTsai, Cheng-Minen_US
dc.contributor.authorMohanta, Nayantaraen_US
dc.contributor.authorWang, Chi-Yungen_US
dc.contributor.authorLin, Yu-Peien_US
dc.contributor.authorYang, Yaw-Wenen_US
dc.contributor.authorWang, Chien-Lungen_US
dc.contributor.authorHung, Chen-Hsiungen_US
dc.contributor.authorDiau, Eric Wei-Guangen_US
dc.date.accessioned2018-08-21T05:52:47Z-
dc.date.available2018-08-21T05:52:47Z-
dc.date.issued2017-10-23en_US
dc.identifier.issn1433-7851en_US
dc.identifier.urihttp://dx.doi.org/10.1002/anie.201707037en_US
dc.identifier.urihttp://hdl.handle.net/11536/143951-
dc.description.abstractWe synthesized and characterized methylammonium (MA) mixed tri-halide tin perovskites (MASnIBr(2-x)Cl(x)) for carbon-based mesoscopic solar cells free of lead and holetransporting layers. Varied SnCl2/SnBr2 ratios yielded tin perovskites with three halides (I, Br, and Cl) co-crystallized inside the tin-perovskite. When the SnCl2 proportion was >= 50% (x >= 1), phase separation occurred to give MAS-nI(3-y)Br(y) and MASnCl(3-z)Br(z) in the stoichiometric proportions of their precursors, confirmed by XRD. A device with MASnIBr(1.8)Cl(0.2) (SnCl2= 10%) showed the best photovoltaic performance: J(SC)= 14.0 mAcm(-2), V-OC= 380 mV, FF= 0.573, and PCE= 3.1%, and long-term stability. Electrochemical impedance spectra (EIS) show superior charge recombination and dielectric relaxation properties for the MASnIBr(1.8)Cl(0.2) cell. Transient PL decays showed the intrinsic problem of tinbased perovskites with average lifetimes less than 100 ps.en_US
dc.language.isoen_USen_US
dc.subjectcarbon electrodesen_US
dc.subjecthalidesen_US
dc.subjectperovskitesen_US
dc.subjectsolar cellsen_US
dc.subjecttinen_US
dc.titleFormation of Stable Tin Perovskites Co-crystallized with Three Halides for Carbon-Based Mesoscopic Lead-Free Perovskite Solar Cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/anie.201707037en_US
dc.identifier.journalANGEWANDTE CHEMIE-INTERNATIONAL EDITIONen_US
dc.citation.volume56en_US
dc.citation.spage13819en_US
dc.citation.epage13823en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.department應用化學系分子科學碩博班zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.contributor.departmentInstitute of Molecular scienceen_US
dc.identifier.wosnumberWOS:000413314800051en_US
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