NDLI: In-situ post-deposition thermal annealing of co-evaporated Cu(InGa)Se thin films deposited at low temperatures

Content Provider	IEEE Xplore Digital Library
Author	Wilson, J.D. McCandless, B.E. Birkmire, R.W. Shafarman, W.N.
Copyright Year	2009
Description	Author affiliation: Institute of Energy Conversion, University of Delaware, Newark, 19716 U.S.A. (Wilson, J.D.; McCandless, B.E.; Birkmire, R.W.; Shafarman, W.N.)
Abstract	The effects of deposition temperature and in-situ post-deposition annealing on the microstructure of co-evaporated Cu(InGa)Se thin films and on the performance of the resulting solar cell devices have been characterized. Films were deposited at substrate temperatures of 150°C, 300°C and 400°C. Films were also deposited at these temperatures and then annealed in-situ at 550°C for 10 minutes. In as-deposited films without annealing, additional XRD reflections that may be due to a polytypic modification of the chalcopyrite phase were observed. Films deposited at 150°C were Se-rich. Post-deposition annealing caused microstructural changes in all films and improved the resulting solar cells. Only films deposited at 400°C, however, yielded high-efficiency devices after post-deposition annealing that were equivalent to devices made from films grown at 550°C. Films originally deposited at 300°C yielded devices after post-deposition annealing with V close to that of devices made from films grown at 550°C, despite smaller grain size.
Starting Page	001144
Ending Page	001148
File Size	1959821
Page Count	5
File Format	PDF
ISBN	9781424429493
ISSN	01608371
DOI	10.1109/PVSC.2009.5411221
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Annealing Optical films Temperature Photovoltaic cells Microstructure Sputtering Thin film devices X-ray scattering Reflection Grain size
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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