Title :
Achievement of over 17% efficiency with 30×30cm2-sized Cu(InGa)(SeS)2 submodules
Author :
Sugimoto, H. ; Yagioka, T. ; Nagahashi, M. ; Yasaki, Y. ; Kawaguchi, Y. ; Morimoto, T. ; Chiba, Y. ; Aramoto, T. ; Tanaka, Y. ; Hakuma, H. ; Kuriyagawa, S. ; Kushiya, K.
Author_Institution :
Atsugi Res. Center, Solar Frontier K.K., Atsugi, Japan
Abstract :
17.2 % efficiency on a 30×30cm2-sized Cu(InGa)(SeS)2 (CIS-based) thin-film submodule is achieved. The structure of the submodule is the same as the previously reported one; i.e. monolithically integrated CIS-based cells on a Mo-deposited glass substrate with a Zn(O, S, OH)x buffer and a ZnO window. Current progress is brought by improving uniformity across respective layers and by reducing the optical loss of the ZnO window. For enhanced cost-competitiveness, we are pursuing both research & development and commercial production with unprecedented speed.
Keywords :
copper compounds; gallium compounds; indium compounds; modules; optical losses; semiconductor thin films; solar cells; zinc compounds; Cu(InGa)(SeS)2; Cu(InGa)(SeS)2 submodules; ZnO; commercial production; cost-competitiveness; monolithically integrated CIS-based cells; optical loss; research & development; thin-film submodule; Apertures; Optical buffering; Optical losses; Optical reflection; Optical refraction; Optical variables control; Refractive index;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-9966-3
DOI :
10.1109/PVSC.2011.6186681
