Highly efficient perovskite solar cells based on mechanically durable molybdenum cathode

Title
Highly efficient perovskite solar cells based on mechanically durable molybdenum cathode
Authors
정인영김해진이병석손해정김진영이도권김대은이진우고민재
Keywords
Organicinorganic hybrid perovskite; Photovoltaics; Cathode; Noble metal-free; Molybdenum
Issue Date
2015-10
Publisher
Nano energy
Citation
VOL 17, NO 10, 131-139
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/50287
ISSN
22112855
Appears in Collections:
KIST Publication > Article
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