Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 조윌렴 | * |
dc.contributor.author | 윤석현 | * |
dc.date.accessioned | 2020-03-16T16:30:17Z | - |
dc.date.available | 2020-03-16T16:30:17Z | - |
dc.date.issued | 2020 | * |
dc.identifier.issn | 0169-4332 | * |
dc.identifier.issn | 1873-5584 | * |
dc.identifier.other | OAK-26531 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/253507 | - |
dc.description.abstract | Environment-friendly Cu(In,Ga)Se-2 (CIGS) solar cells requires the replacement of Cd-containing buffers with non-toxic materials. Zn(O,S) buffers have been developed and yielded even better efficiency than CdS-buffered CIGS thin-film solar cells [23.35%, Ref. [6]]. In this work, we studied band offsets of Zn(O,S) and CIGS interfaces. The Cd-free buffer layers were deposited with 1.0%, 1.3%, and 1.6% oxygen (O-2) gas partial pressure during the deposition. Effects of the oxygen partial pressure on the structure and electronic properties of the devices were investigated by micro-Raman scattering spectroscopy and Kelvin probe force microscopy, respectively. We achieved depth-profiling of spatial work function mapping across the interface between the absorbers and the buffers. The best efficiency sample, grown using 1.3% of oxygen, showed 80 mV spike-like band offsets. We propose that the efficiency can be improved through tailoring of the band offsets at the interface as well as improving the absorber and the buffer materials. | * |
dc.language | English | * |
dc.publisher | ELSEVIER | * |
dc.subject | Cu(InGa)Se-2 thin-film solar cells | * |
dc.subject | Zn(O,S) buffer layer | * |
dc.subject | Kelvin probe force microscopy (KPFM) | * |
dc.subject | Micro-Raman scattering spectroscopy | * |
dc.title | Unraveling interface characteristics of Zn(O,S)/Cu(In,Ga)Se-2 at nanoscale: Enhanced hole transport by tuning band offsets | * |
dc.type | Article | * |
dc.relation.volume | 509 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | APPLIED SURFACE SCIENCE | * |
dc.identifier.doi | 10.1016/j.apsusc.2019.144782 | * |
dc.identifier.wosid | WOS:000514827600161 | * |
dc.identifier.scopusid | 2-s2.0-85076826212 | * |
dc.author.google | Kim, Juran | * |
dc.author.google | Kim, Jayeong | * |
dc.author.google | Ko, Eunji | * |
dc.author.google | Park, Ha Kyung | * |
dc.author.google | Yoon, Seokhyun | * |
dc.author.google | Cho, Dae-Hyung | * |
dc.author.google | Lee, Woo-Jung | * |
dc.author.google | Chung, Yong-Duck | * |
dc.author.google | Jo, William | * |
dc.contributor.scopusid | 조윌렴(7103322276) | * |
dc.contributor.scopusid | 윤석현(55732105900) | * |
dc.date.modifydate | 20240123091004 | * |