Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere
Direct spray pyrolysis to form CuInS2 (CIS) on molybdenum substrate in ambient environment has been a challenge because of the ease of Mo oxidation at low temperatures. MoO2 formation affects the wettability of precursor solution during spray pyrolysis, which degrades the uniformity of CIS film and...
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sg-ntu-dr.10356-961772021-01-14T08:37:24Z Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere Ho, John C. W. Zhang, Tianliang Lee, Kian Keat Wong, Lydia H. Tok, Alfred Iing Yoong Batabyal, Sudip Kumar School of Materials Science and Engineering Energy Research Institute @ NTU (ERI@N) Research Techno Plaza DRNTU::Engineering::Materials Direct spray pyrolysis to form CuInS2 (CIS) on molybdenum substrate in ambient environment has been a challenge because of the ease of Mo oxidation at low temperatures. MoO2 formation affects the wettability of precursor solution during spray pyrolysis, which degrades the uniformity of CIS film and acts as a resistive layer for carrier transport. In this paper, Mo oxidation was prevented by using excess sulfur in the precursor solution under a gradual heating and spray process. A thin precursor layer was initially deposited as a barrier layer to prevent oxygen adsorption on Mo surface before the temperature was increased further to form polycrystalline CuInS2. The CuIn(S,Se)2 (CISSe) device fabricated from selenization of the spray-pyrolyzed CIS film exhibited a power conversion efficiency (PCE) of 5.9%. The simple spray method proposed here can be used to deposit a variety of Cu-based chalcopyrite precursor to produce high-quality thin film solar cells. 2014-05-30T05:56:28Z 2019-12-06T19:26:38Z 2014-05-30T05:56:28Z 2019-12-06T19:26:38Z 2014 2014 Journal Article Ho, J. C. W., Zhang, T., Lee, K. K., Batabyal, S. K., Tok, A. I. Y., & Wong, L. H. (2014). Spray Pyrolysis of CuIn(S,Se)2 Solar Cells with 5.9% Efficiency: A Method to Prevent Mo Oxidation in Ambient Atmosphere. ACS Applied Materials and Interfaces, 6(9), 6638–6643. 1944-8244 https://hdl.handle.net/10356/96177 http://hdl.handle.net/10220/19473 10.1021/am500317m 180301 en ACS applied materials and interfaces © 2014 American Chemical Society |
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DRNTU::Engineering::Materials Ho, John C. W. Zhang, Tianliang Lee, Kian Keat Wong, Lydia H. Tok, Alfred Iing Yoong Batabyal, Sudip Kumar Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere |
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Direct spray pyrolysis to form CuInS2 (CIS) on molybdenum substrate in ambient environment has been a challenge because of the ease of Mo oxidation at low temperatures. MoO2 formation affects the wettability of precursor solution during spray pyrolysis, which degrades the uniformity of CIS film and acts as a resistive layer for carrier transport. In this paper, Mo oxidation was prevented by using excess sulfur in the precursor solution under a gradual heating and spray process. A thin precursor layer was initially deposited as a barrier layer to prevent oxygen adsorption on Mo surface before the temperature was increased further to form polycrystalline CuInS2. The CuIn(S,Se)2 (CISSe) device fabricated from selenization of the spray-pyrolyzed CIS film exhibited a power conversion efficiency (PCE) of 5.9%. The simple spray method proposed here can be used to deposit a variety of Cu-based chalcopyrite precursor to produce high-quality thin film solar cells. |
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School of Materials Science and Engineering |
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School of Materials Science and Engineering Ho, John C. W. Zhang, Tianliang Lee, Kian Keat Wong, Lydia H. Tok, Alfred Iing Yoong Batabyal, Sudip Kumar |
format |
Article |
author |
Ho, John C. W. Zhang, Tianliang Lee, Kian Keat Wong, Lydia H. Tok, Alfred Iing Yoong Batabyal, Sudip Kumar |
author_sort |
Ho, John C. W. |
title |
Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere |
title_short |
Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere |
title_full |
Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere |
title_fullStr |
Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere |
title_full_unstemmed |
Spray pyrolysis of CuIn(S,Se)2 solar cells with 5.9% efficiency : a method to prevent Mo oxidation in ambient atmosphere |
title_sort |
spray pyrolysis of cuin(s,se)2 solar cells with 5.9% efficiency : a method to prevent mo oxidation in ambient atmosphere |
publishDate |
2014 |
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https://hdl.handle.net/10356/96177 http://hdl.handle.net/10220/19473 |
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