Highly efficient perovskite solar cells based on mechanically durable molybdenum cathode

Inyoung Jeong, Hae Jin Kim, Byung Seok Lee, Hae Jung Son, Jin Young Kim, Doh Kwon Lee, Dae Eun Kim, Jinwoo Lee, Min Jae Ko

Research output: Contribution to journalArticle

27 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)131-139
Number of pages9
JournalNano Energy
Volume17
DOIs
Publication statusPublished - 2015 Oct 1

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

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    Jeong, I., Jin Kim, H., Lee, B. S., Jung Son, H., Young Kim, J., Lee, D. K., Kim, D. E., Lee, J., & Ko, M. J. (2015). Highly efficient perovskite solar cells based on mechanically durable molybdenum cathode. Nano Energy, 17, 131-139. https://doi.org/10.1016/j.nanoen.2015.07.025