Investigation of induced recrystallization and stress in close-spaced sublimated and radio-frequency magnetron sputtered CdTe thin films
- National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401 (United States)
We have induced recrystallization of small grain CdTe thin films deposited at low temperatures by close-spaced sublimation (CSS), using a standard CdCl{sub 2} annealing treatment. We also studied the changes in the physical properties of CdTe films deposited by radio-frequency magnetron sputtering after the same post-deposition processing. We demonstrated that the effects of CdCl{sub 2} on the physical properties of CdTe films are similar, and independent of the deposition method. The recrystallization process is linked directly to the grain size and stress in the films. These studies indicated the feasibility of using lower-temperature processes in fabricating efficient CSS CdTe solar cells. We believe that, after the optimization of the parameters of the chemical treatment, these films can attain a quality similar to CSS films grown using current standard conditions. {copyright} {ital 1999 American Vacuum Society.}
- OSTI ID:
- 359796
- Report Number(s):
- CONF-981126-; ISSN 0734-2101; TRN: 9914M0044
- Journal Information:
- Journal of Vacuum Science and Technology, A, Vol. 17, Issue 4; Conference: 45. annual American Vacuum Society symposium and topical conference, Baltimore, MD (United States), 2-6 Nov 1998; Other Information: PBD: Jul 1999
- Country of Publication:
- United States
- Language:
- English
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