Lee, Jung Hun Choi, Heon Jin Kim, Won Mok Jeong, Jeung Hyun Park, Jong Keuk 2024-01-20T05:32:40Z 2024-01-20T05:32:40Z 2021-09-03 2015-12 1947-2935 https://pubs.kist.re.kr/handle/201004/124712 The effect of precursor stacking structure on the phase formation and efficiency of Cu2ZnSnS4 (CZTS) thin film solar cells prepared by sulfurization of sputtered Cu-Zn-Sn metal precursors with H2S gas was investigated. Precursors with different stacking structures of (Cu, Zn, Sn), (Zn, Sn)/Cu and Zn/(Cu, Sn) were deposited by sputtering Cu, Zn, and Sn metal targets. The surface morphology and composition of the sulfurized precursors with H2S were observed to be critically dependent on the precursor stacking structure. For the CZTS film prepared by sulfurization of a (Cu, Zn, Sn) precursor, non-uniform surface morphology with different atomic concentration was observed. On the other hand, uniform grained surface morphology appeared in the CZTS films obtained by sulfurization of (Zn, Sn)/Cu and Zn/(Cu, Sn) precursors. The Zn/(Cu, Sn) precursor induced more dense surface microstructure with lower porosity in CZTS film. The solar cell performance of CZTS thin films was also affected by the stacking structure of precursor. In contrast to the CZTS thin film prepared with (Cu, Zn, Sn) precursor showing lower efficiency (similar to 0.8%), the CZTS solar cell fabricated with Zn/(Cu, Sn) precursor showed higher efficiency of 2.64%. This phenomenon was due to the change in the microstructure and secondary phase formation during sulfurization of metal precursors with H2S gas. English AMER SCIENTIFIC PUBLISHERS THIN-FILMS SULFUR-CONTENT EQUILIBRIA Effect of Precursor Stacking Structure on the Phase Formation and Efficiency of Cu2ZnSnS4 Solar Cell Prepared by Sulfurization of Cu-Zn-Sn Metal Precursors with H2S Gas Article 10.1166/sam.2015.2586 1 SCIENCE OF ADVANCED MATERIALS, v.7, no.12, pp.2656 - 2663 SCIENCE OF ADVANCED MATERIALS 7 12 2656 2663 scie scopus 000368827600022 2-s2.0-84957586031 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Science & Technology - Other Topics Materials Science Physics Article THIN-FILMS SULFUR-CONTENT EQUILIBRIA Cu2ZnSnS4 (CZTS) Sputtering Metal Precursor H2S Gas Sulfurization Thin Film Solar Cells