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Critical issues for high-efficiency low-cost CIGS solar cells and modules

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13 Author(s)
Niki, S. ; Res. Center for Photovoltaics, AIST, Tsukuba, Japan ; Ishizuka, S. ; Komaki, H. ; Kamikawa-Shimizu, Y.
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High-efficiency CIGS solar cells and submodules have been developed at AIST. By developing the water-vapor assisted deposition technique, widegap CIGS solar cells with conversion efficiencies of over 18% with Voc=0.744V have been demonstrated. The conversion efficiencies of integrated submodules on 10×10cm2 sodalime glass substrates have been improved up to η=16.2% by using coevaporation process. These results indicate that the CIGS technologies are competitive with the current Si and CdTe technologies in terms of both cost and performance.

Published in:

Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE

Date of Conference:

20-25 June 2010