CuSbS 2 ‐Sensitized Inorganic–Organic Heterojunction Solar Cells Fabricated Using a Metal–Thiourea Complex Solution

The device performance of sensitizer‐architecture solar cells based on a CuSbS 2 light sensitizer is presented. The device consists of F‐doped SnO 2 substrate/TiO 2 blocking layer/mesoporous TiO 2 /CuSbS 2 /hole‐transporting material/Au electrode. The CuSbS 2 was deposited by repeated cycles of spin...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2015-03, Vol.54 (13), p.4005-4009
Main Authors: Choi, Yong Chan, Yeom, Eun Joo, Ahn, Tae Kyu, Seok, Sang Il
Format: Article
Language:English
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Summary:The device performance of sensitizer‐architecture solar cells based on a CuSbS 2 light sensitizer is presented. The device consists of F‐doped SnO 2 substrate/TiO 2 blocking layer/mesoporous TiO 2 /CuSbS 2 /hole‐transporting material/Au electrode. The CuSbS 2 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)‐4 H ‐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 %.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201411329