High Performance CIGS Thin-Film Solar Cells: A Laboratory Perspective

Conference · Tue Nov 01 00:00:00 EST 2005

OSTI ID:882796

Ramanathan, K; Bhattacharya, R; Contreras, M; Keane, J C; To, B; Dhere, R G; Noufi, R

We present a summary of our work on the preparation of CuInGaSe2 (CIGS) absorbers that has led to fabricating record-efficiency solar cells. The use of the three-stage process in conjunction with composition monitoring facilitates the fabrication of solar cells with efficiencies between 18% and 19.5% for absorber bandgap in the range of 1.1-1.2 eV. We describe our recent results in reducing absorber thickness and low-temperature deposition. Our preliminary results on absorbers grown from low-purity source materials show promise of reducing the cost of fabricating the absorber.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC36-99-GO10337
• OSTI ID: 882796
• Report Number(s): NREL/CP-520-38987
• Resource Relation: Related Information: Presented at the 2005 DOE Solar Energy Technologies Program Review Meeting held November 7-10, 2005 in Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-1020060-2245; NREL/CD-520-38577)
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
PHOTOVOLTAICS
SOLAR
CIGS
THIN FILM
PV
NREL
Solar Energy - Photovoltaics