Post-Deposition Sulfur Incorporation into CuInSe2 Thin Films
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ABSTRACTThe effect of initial film composition and substrate in the sulfurization of CuInSe2 was investigated. CuInSe2 films deposited on either soda-lime glass (SL) or Corning 7059® borosilicate glass (7059) substrates were reacted in flowing H2S for times from 1 to 8 hours. Films with Cu-rich composition, Cu/In > 1, reacted for 1 hour had nearly all the Se replaced by S. For Cu-poor films the incorporation of S was significantly reduced. In addition, in Cu-poor films on SL glass CuInS2 and NaInS2 were found at the film surface. These phases were not detected in films on 7059 substrates or in Cu-rich films. A phenomenological model is proposed to explain the formation of segregated surface phases in Cu-poor films on SL substrates.
2010 ◽
Vol 2010
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pp. 1-4
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2013 ◽
Vol 275-277
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pp. 2018-2022
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1994 ◽
Vol 12
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pp. 751-753
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2007 ◽
Vol 269
(2)
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pp. 370-377
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