Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 조윌렴 | * |
dc.date.accessioned | 2019-05-24T16:30:32Z | - |
dc.date.available | 2019-05-24T16:30:32Z | - |
dc.date.issued | 2019 | * |
dc.identifier.issn | 0957-4484 | * |
dc.identifier.issn | 1361-6528 | * |
dc.identifier.other | OAK-24800 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/249873 | - |
dc.description.abstract | This paper reports on grain boundary (GB) roles in lead-free tin halide perovskite thin films. Nano scale spatial mapping of charge separation efficiency in methylammonium tin halide (MASn(I1-xBrx)(3), MA = CH3NH3) thin films were constructed by Kelvin probe force microscopy and conductive atomic force microscopy (C-AFM). We observed downward band bending at GBs under dark conditions and higher surface photovoltage along the GBs, confirmed by C-AFM which showed high local current flows along the GBs. The band bending degree and local current intensity were affected by the Br/I ratio. Photo-generated carriers were more effectively separated and collected at GBs with increased Br content, and hysteresis was observed in Br-rich Sn-halide perovskite. | * |
dc.language | English | * |
dc.publisher | IOP PUBLISHING LTD | * |
dc.subject | tin-based perovskite | * |
dc.subject | grain boundary | * |
dc.subject | grain size | * |
dc.subject | band bending | * |
dc.subject | charge separation and collection | * |
dc.title | Enhanced carrier transport over grain boundaries in lead-free CH3NH3Sn(I1-xBrx)(3) (0 <= x <= 1) perovskite solar cells | * |
dc.type | Article | * |
dc.relation.issue | 31 | * |
dc.relation.volume | 30 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | NANOTECHNOLOGY | * |
dc.identifier.doi | 10.1088/1361-6528/ab19dd | * |
dc.identifier.wosid | WOS:000467466700002 | * |
dc.author.google | Nguyen, Bich Phuong | * |
dc.author.google | Jung, Hye Ri | * |
dc.author.google | Kim, Juran | * |
dc.author.google | Jo, William | * |
dc.contributor.scopusid | 조윌렴(7103322276) | * |
dc.date.modifydate | 20240123091004 | * |