title: CuSbS2 -sensitized inorganic-organic heterojunction solar cells fabricated using a metal-thiourea complex solution.
abstract: The device performance of sensitizer-architecture solar cells based on a CuSbS2 light sensitizer is presented. The device consists of F-doped SnO2 substrate/TiO2 blocking layer/mesoporous TiO2 /CuSbS2 /hole-transporting material/Au electrode. The CuSbS2 was deposited by repeated cycles of spin coating of a Cu-Sb-thiourea complex solution and thermal decomposition, followed by annealing in Ar at 500 °C. Poly(2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)-alt-4,7(2,1,3-benzothiadiazole)) (PCPDTBT) was used as the hole-transporting material. The best-performing cell exhibited a 3.1 % device efficiency, with a short-circuit current density of 21.5 mA cm(-2) , an open-circuit voltage of 304 mV, and a fill factor of 46.8 %.
authors: Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-Ro, Yuseong-Gu, Daejeon 305-600 (Republic of Korea).
authors: Yong Chan
authors: YC
authors: Choi
authors: Eun Joo
authors: EJ
authors: Yeom
authors: Tae Kyu
authors: TK
authors: Ahn
authors: Sang Il
authors: SI
authors: Seok
keywords: antimony; copper; sensitizers; solar cells; thiourea