AFM, Micro-Pl, and PV Analyses of Culn/Sub 1-X/Ga/Sub X/S/Sub 2/ Thin Films Solar Cells on Stainless Steel Foil
Secondary Author(s)
Ghongadi, Shantinath; Pandit, Mandar; Kadam, Ankur; Jahagirdar, Anant; Gade, Vivek
Keywords
CIGS2 thin films; Solar cells; Magnetron sputtering; Sulfurization; Photoluminescence; Stainless steel substrates; Solar cell efficiency
Abstract
A dual-chamber, large-area magnetron-sputtering unit was fabricated. CuIn/sub 1-x/Ga/sub x/S/sub 2/ (CIGS2) thin films were prepared by sulfurization of DC magnetron-sputtered CuGa/In precursor on stainless steel foil substrates in Ar:H/sub 2/S(4%) mixture at 475/spl deg/C. CIGS2 thin films grew with chalcopyrite CuIn/sub 0.7/Ga/sub 0.3/S/sub 2/ phase with a = 5.67 /spl Aring/ and c = 11.34 /spl Aring/ and preferred {112} orientation. In homogeneous broadening, and variation of peak position and amplitude of microPL signal were probably caused by rough morphology and variation in the defect chemistry. Best efficiencies of CIGS2 solar cell on SS flexible foil measured at NREL and NASA GRC were 10.4% (AM 1.5) and 8.84% AM 0 respectively.
Date Published
5-19-2002
Identifiers
574
Subjects
Thin films; Solar cells; Photoluminescence; Stainless steel; Solar energy; Solar cells
Local Subjects
PV Cells
Type
Text; Document
Collection
FSEC Energy Research Center® Collection
STARS Citation
Florida Solar Energy Center and Dhere, Neelkanth, "AFM, Micro-Pl, and PV Analyses of Culn/Sub 1-X/Ga/Sub X/S/Sub 2/ Thin Films Solar Cells on Stainless Steel Foil" (2002). FSEC Energy Research Center®. 574.
https://stars.library.ucf.edu/fsec/574