Perovskite solar cells using TiO2 layers coated with metal-organic framework material ZIF-8

Ho Yang Chung, Chia Her Lin, Samikannu Prabu, Hong Wen Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A metal-organic framework of ZIF-8 is used as an interlayer between the mesoporous TiO2 and the perovskite layer in perovskite solar cells (PSCs). The ZIF-8 solution is dried on the mesoporous TiO2 layer, which can then act as an additional light absorbing layer at the short-wavelength range for the solar cells, leading to improved performance of the cell. After an immersion time of 1–5 min, a very thin ZIF-8 film is formed on TiO2. An enhancement in the incident photon to current conversion efficiency (IPCE) is achieved for PSCs using the ZIF-8-coated TiO2 layer. The conversion efficiency of PSCs is improved from 9.6 to 12.0% when ZIF-8 is present. UV–vis and photoluminescence (PL) spectra are used to investigate the beneficial effect of ZIF-8/TiO2 hybrid layers.

Original languageEnglish
Pages (from-to)1476-1481
Number of pages6
JournalJournal of the Chinese Chemical Society
Issue number12
Publication statusPublished - 2018 Dec
Externally publishedYes


  • MOF
  • perovskite solar cells
  • ZIF-8

ASJC Scopus subject areas

  • Chemistry(all)


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