Highly efficient perovskite solar cells based on mechanically durable molybdenum cathode
- Highly efficient perovskite solar cells based on mechanically durable molybdenum cathode
- 정인영; 김해진; 이병석; 손해정; 김진영; 이도권; 김대은; 이진우; 고민재
hybrid perovskite; Photovoltaics; Cathode; Noble metal-free; Molybdenum
- Issue Date
- Nano energy
- VOL 17, NO 10, 131-139
- 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.
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