Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 509, Issue 19, Pages 5783-5788Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.08.164
Keywords
CuInSe2; Chalcopyrite; Microstructure; Hydrothermal
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Funding
- National Science Council, Taiwan, the Republic of China [NSC 98-3114-E002-014]
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CuInSe2 powders with a chalcopyrite structure used in thin-film solar cells were successfully prepared via a hydrothermal method at low temperatures within short durations. Well-crystallized CuInSe2 particles were formed via the hydrothermal reaction at 180 degrees C for 1 h. The concentrations of stabilizer, triethanolamine (TEA), significantly affected the purity, morphology and particle sizes of the prepared powders. Increasing the reaction duration and temperatures led to decrease the amount of second phase In(OH)(3) and resulted in the formation of pure CuInSe2. Densified CuInSe2 thin films were prepared from ink printing with the addition of the flux. Increasing the selenization temperatures increased the grain size and improved the crystallinity of CuInSe2 films. (C) 2011 Elsevier B. V. All rights reserved.
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