Title :
Over 12% efficiency Cu2ZnSn(SeS)4 solar cell via hybrid buffer layer
Author :
Hiroi, Homare ; Kim, Jung-Ho ; Kuwahara, Masashi ; Todorov, Teodor K. ; Nair, Dhruv ; Hopstaken, Marinus ; Yu Zhu ; Gunawan, Oki ; Mitzi, David B. ; Sugimoto, Hiroshi
Author_Institution :
Energy Solution Bus. Center, Showa Shell Sekiyu K.K., Showa, Japan
Abstract :
Efficiency of 12.3% on solution-based Cu2ZnSn(SeS)4 (CZTSeS) solar cells was achieved by applying hybrid buffer layer with combination of In-based buffer and Cd-based buffer layers. Previously, the Voc boost by the hybrid buffer layer on Cu2ZnSnS4 (CZTS) and CZTSeS solar cells have been reported[1-2]. In this paper, the latest results and some analyses of the hybrid buffer for solution-based CZTSeS cells will be presented.
Keywords :
copper compounds; selenium compounds; solar cells; tin compounds; zinc compounds; Cd; Cu2ZnSn(SeS)4; Cu2ZnSnS4SeS; In; hybrid buffer layer; solar cells; solution-based cells; Abstracts; Indium tin oxide; Sputtering; CZTS; CdS; In2S3; buffer layer;
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th
Conference_Location :
Denver, CO
DOI :
10.1109/PVSC.2014.6925044
