Inorganic hole conducting layers for perovskite-based solar cells

Anand S. Subbiah, Ansuman Halder, Soham Ghosh, Neha Mahuli, Gary Hodes, Shaibal K. Sarkar

Research output: Contribution to journalArticlepeer-review

326 Scopus citations

Abstract

Hybrid organic-inorganic semiconducting perovskite photovoltaic cells are usually coupled with organic hole conductors. Here, we report planar, inverse CH3NH3PbI3-xClx-based cells with inorganic hole conductors. Using electrodeposited NiO as hole conductor, we have achieved a power conversion efficiency of 7.3%. The maximum VOC obtained was 935 mV with an average VOC value being 785 mV. Preliminary results for similar cells using electrodeposited CuSCN as hole conductor resulted in devices up to 3.8% in efficiency. The ability to obtain promising cells using NiO and CuSCN expands the presently rather limited range of available hole conductors for perovskite cells.

Original languageEnglish
Pages (from-to)1748-1753
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume5
Issue number10
DOIs
StatePublished - 15 May 2014
Externally publishedYes

Keywords

  • CuSCN
  • Inorganic hole conductor
  • NiO
  • Perovskite solar cell

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