Spin-coating free fabrication for highly efficient perovskite solar cells

Jianghui Zheng, Meng Zhang*, Cho Fai Jonathan Lau, Xiaofan Deng, Jincheol Kim, Qingshan Ma, Chao Chen, Martin A. Green, Shujuan Huang, Anita W. Y. Ho-Baillie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)


A spin-coating-free fabrication sequence has been developed for the fabrication of highly efficient organic-inorganic halide perovskite solar cells (PSCs). A novel blow-drying method is demonstrated to be successful in depositing high quality mesoporous TiO2 (mp-TiO2), methylammonium lead halide (CH3NH3PbI3) perovskite and spiro-MeOTAD layers. When combined with compact TiO2 (c-TiO2) deposited by spray pyrolysis which is also a spin-coating-free process, a stabilized power conversion efficiency exceeding 17% can be achieved for the glass/FTO/c-TiO2/mp-TiO2/ CH3NH3PbI3/spiro-MeOTAD/Au device. This is the highest efficiency for PSCs fabricated without the use of spin-coating to our knowledge. This method provides a pathway towards a scalable process for fabricating high-performance, large area and reproducible PSCs.

Original languageEnglish
Pages (from-to)165-171
Number of pages7
JournalSolar Energy Materials and Solar Cells
Publication statusPublished - Aug 2017
Externally publishedYes


  • Spin-coating free
  • Perovskite solar cell
  • Blow-drying
  • Scalable process


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