Journal
NANO ENERGY
Volume 17, Issue -, Pages 131-139Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2015.07.025
Keywords
Organic-inorganic hybrid perovskite; Photovoltaics; Cathode; Noble metal-free; Molybdenum
Categories
Funding
- Global Frontier R&D Program on Center for Multiscale Energy System [2012M3A6A7054856]
- University-Institute cooperation program - National Research Foundation under the Ministry of Science, ICT & Future Planning, Korea
- KIST Institutional Programs [2V03780, 2E25392]
- National Research Foundation of Korea (NRF) grant - Korea government (MSIP) [2010-0018289]
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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.
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