Title :
Reactor analysis of copper indium selenization
Author :
Varrin, R. ; Verma, S. ; Birkmire, R. ; McCandless, B. ; Russell, T.F.
Author_Institution :
Inst. of Energy Conversion, Delaware Univ., Newark, DE, USA
Abstract :
A preliminary process analysis of selenization of copper/indium (Cu/In) bilayers in a flowing H2Se reactor has been completed. The analysis includes evaluations of heat treatments of Cu/In bilayers and of the relationship between the composition and structure of the bilayer and the resultant CuInSe2 film, and an investigation of selenization reaction kinetics, including comparisons between the reaction of H2Se with bilayers and with single copper and indium layers. X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), atomic absorption spectrophotometry (AA), and scanning electron (SEM) and optical microscopy have been used to study the selenization process. CuInSe2/(CdZn)S devices were also used to evaluate the quality of the CuInSe2 films. Devices with efficiencies greater than 10% have been fabricated
Keywords :
copper compounds; heat treatment; indium compounds; solar cells; ternary semiconductors; CuInSe2 solar cells; EDS; SEM; X-ray diffraction; XRD; atomic absorption spectrophotometry; energy dispersive spectroscopy; heat treatments; optical microscopy; reaction kinetics; reactor analysis; scanning electron microscopy; selenization process; Atom optics; Copper; Heat treatment; Indium; Inductors; Kinetic theory; Optical films; Optical microscopy; Scanning electron microscopy; X-ray diffraction;
Conference_Titel :
Photovoltaic Specialists Conference, 1990., Conference Record of the Twenty First IEEE
Conference_Location :
Kissimmee, FL
DOI :
10.1109/PVSC.1990.111678
