Highly efficient perovskite solar cells based on mechanically durable molybdenum cathode

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Noble metal-free mesoscopic perovskite solar cell based on low-cost molybdenum (Mo) cathode has been developed for the first time. By optimizing the thickness of Mo electrode and combination with high quality perovskite layer, the Mo cathode-based perovskite solar cell exhibited a best power conversion efficiency as high as 15.06% with invariance of current density-voltage curves at different scan rates and very small hysteresis according to scan direction. In addition to photovoltaic performances, importance of mechanical durability of a cathode material for perovskite solar cell was highlighted and results from nano-indentation and scratch test indicated that Mo electrode has superior resistance and restoration capability against external scratch or deformation compared to Au electrode. The Mo cathode-based perovskite solar cells have great potential for realizing low cost and high performance as well as mechanical durability. (C) 2015 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2015-10
Language
English
Article Type
Article
Citation

NANO ENERGY, v.17, pp.131 - 139

ISSN
2211-2855
DOI
10.1016/j.nanoen.2015.07.025
URI
http://hdl.handle.net/10203/245026
Appears in Collection
CBE-Journal Papers(저널논문)
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