Abstract
Advances in module efficiency and process control using CIGS-based PV on flexible substrates are described. Modules on thin webs of stainless steel foil (SST) and polyimide (PI) have been made using continuous roll-to-roll (RTR) processing in compact reactors. Process control improvements for many important parameters have been instituted, including in-situ X-ray fluorescence and real-time Se delivery regulation; these have resulted in dramatic increases in uniformity and reproducibility for both substrate types. For polyimide substrates, several material limitations and previously reported difficulties such as back contact cracking, poor absorber adhesion and low temperature processing are addressed. Successful development of a low-loss, all-laser scribing process for monolithic integration on polyimide is described.
Original language | American English |
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Pages | 575-578 |
Number of pages | 4 |
State | Published - 2002 |
Externally published | Yes |
Event | 29th IEEE Photovoltaic Specialists Conference - New Orleans, LA, United States Duration: 19 May 2002 → 24 May 2002 |
Conference
Conference | 29th IEEE Photovoltaic Specialists Conference |
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Country/Territory | United States |
City | New Orleans, LA |
Period | 19/05/02 → 24/05/02 |
Bibliographical note
Work performed by Global Solar Energy, Inc., Tucson, Arizona and ITN Energy Systems, Littleton, ColoradoNREL Publication Number
- NREL/CP-520-33677