Chae, Sang Youn Park, Se Jin Joo, Oh-Shim Jun, Yongseok Min, Byoung Koun Hwang, Yun Jeong 2024-01-20T03:33:39Z 2024-01-20T03:33:39Z 2021-09-05 2016-08-04 2045-2322 https://pubs.kist.re.kr/handle/201004/123796 A highly stable monolithic tandem solar cell was developed by combining the heterogeneous photovoltaic technologies of dye-sensitized solar cell (DSSC) and solution-processed CuInxGa1-xSeyS1-y (CIGS) thin film solar cells. The durability of the tandem cell was dramatically enhanced by replacing the redox couple from (I-/I-3(-)) -to [Co(bpy)(3)](2+)/[Co(bpy)(3)](3+)), accompanied by a well-matched counter electrode (PEDOT:PSS) and sensitizer (Y123). A 1000 h durability test of the DSSC/CIGS tandem solar cell in ambient conditions resulted in only a 5% decrease in solar cell efficiency. Based on electrochemical impedance spectroscopy and photoelectrochemical cell measurement, the enhanced stability of the tandem cell is attributed to minimal corrosion by the cobalt-based polypyridine complex redox couple. English NATURE PUBLISHING GROUP EFFICIENCY SILICON Highly stable tandem solar cell monolithically integrating dye-sensitized and CIGS solar cells Article 10.1038/srep30868 1 SCIENTIFIC REPORTS, v.6 SCIENTIFIC REPORTS 6 scie scopus 000380890600001 2-s2.0-84982685892 Multidisciplinary Sciences Science & Technology - Other Topics Article EFFICIENCY SILICON 탠덤 태양전지 DSSC CIGS 코발트 redox couple