Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 20, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201700866
Keywords
high-throughput; Sb2Se3; solar cells; TiO2
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Funding
- Major State Basic Research Development Program of China [2016YFA0204000]
- National Natural Science Foundation of China [91433105, 61322401]
- HUST Key Innovation Team for Interdisciplinary Promotion [2016JCTD111]
- Special Fund for Strategic New Development of Shenzhen, China [JCYJ20160414102210144]
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Sb2Se3, a V-2-VI3 compound semiconductor, has attracted extensive research attention in photovoltaics due to its non-toxicity, low cost and earth-abundant constituents. Herein, a combinatorial approach to optimize the performance of TiO2/Sb2Se3 thin film photovoltaics is employed. By simultaneously conducting a series of experiments in parallel rather than one after another, combinatorial strategy increases experimental throughput and reduces personnel costs. Key parameters such as TiO2 thickness, post-annealing temperature and Sb2Se3 thickness are identified as 65 nm, 450 degrees C and 850 nm through the combinatorial approach. Finally, in combination with (NH4)(2)S back surface cleaning, TiO2/Sb2Se3 solar cells with 5.6% efficiency and decent stability are obtained, showcasing the power of high-throughput strategy for accelerating the optimization of Sb2Se3 photovoltaics.
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