Title :
CIGS2 thin films on large area ultralightweight Ti/ SiO/sub 2/ substrates
Author :
Dhere, Neelkanth G. ; Gade, Vivek S. ; Kulkarni, Sachin S.
Author_Institution :
Florida Solar Energy Center, Cocoa, FL, USA
Abstract :
High efficiency solar cells on ultralightweight Ti substrates can be utilized for novel terrestrial and space applications. Large-area sputtering systems and selenization/sulfurization facility have been constructed and installed for development of large (15 cm /spl times/ 10 cm) CIGS2 thin-film solar cells for terrestrial and space applications. The primary focus of this research was to fabricate thin film solar cells on insulating, ultralightweight SiO/sub 2/ coated Ti foil substrate to increase its specific power for space applications. Leveling capability of sol-gel SiO/sub 2/ layers onto titanium foil substrate was analyzed by atomic force microscopy and profilometer roughness measurements. Results of planarization of Ti foil substrates using SiO/sub 2/ coating, sputtering system design upgrade and thickness uniformity of thin films deposited over large area by DC and RF magnetron sputtering sources are presented.
Keywords :
atomic force microscopy; copper compounds; gallium compounds; indium compounds; planarisation; semiconductor thin films; sol-gel processing; solar cells; sputter deposition; ternary semiconductors; Cu(InGa)Se/sub 2/; DC magnetron sputtering; RF magnetron sputtering; Ti-SiO/sub 2/; atomic force microscopy; high efficiency solar cell; large-area sputtering system; planarization; profilometer roughness; selenization; sol-gel layer; space application; sulfurization; thin-film solar cell; ultralightweight substrate;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Conference_Location :
Osaka, Japan
Print_ISBN :
4-9901816-0-3
