Title :
Non-vacuum processing of CIGS solar cells on flexible polymeric substrates
Author :
Kapur, Vijay K. ; Bansal, Ashish ; Le, Phucan ; Asensio, Omar ; Shigeoka, Neil
Author_Institution :
International Solar Electr. Technol., Inglewood, CA, USA
Abstract :
Using an ink based non-vacuum process, CIGS solar cells were successfully fabricated on a flexible polymeric \´Upilex\´ substrate. A thin foil (0.001") of \´Upilex\´ was metallized by sputter deposition of 0.4 /spl mu/m thick layer of Mo and CIGS solar cells were fabricated on it. \´Upilex\´ foil along with various device layers on it, withstood the fabrication conditions of ISET\´s process in which the maximum temperature was raised to 500/spl deg/C. A ClGS solar cell with AMO efficiency of 8.0% and specific power density >1280 watts/Kg was fabricated. With further process optimization we expect to achieve AMO of 10% and power density >1500 watts/Kg in CIGS solar cells.
Keywords :
copper compounds; gallium compounds; indium compounds; metallisation; molybdenum; polymer films; semiconductor thin films; solar cells; sputter deposition; ternary semiconductors; 8.0 percent; CIGS solar cell; Cu(InGa)Se/sub 2/-Mo; Upilex; fabrication condition; flexible polymeric substrate; metallization; nonvacuum processing; optimization; specific power density; sputter deposition; thin foil;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Conference_Location :
Osaka, Japan
Print_ISBN :
4-9901816-0-3