• DOI:10.1021/ja411509g
• Corpus ID: 207105894

Planar heterojunction perovskite solar cells via vapor-assisted solution process.

@article{Chen2014PlanarHP,
  title={Planar heterojunction perovskite solar cells via vapor-assisted solution process.},
  author={Qi Chen and Huanping Zhou and Z. R. Hong and Song Luo and Hsin‐Sheng Duan and Hsin-Hua Wang and Yongsheng Liu and Gang Li and Yang Yang},
  journal={Journal of the American Chemical Society},
  year={2014},
  volume={136 2},
  pages={
          622-5
        }
}

• Qi Chen, Huanping Zhou, +6 authors Yang Yang
• Published 15 January 2014
• Materials Science, Chemistry
• Journal of the American Chemical Society

Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third-generation photovoltaics. Here we demonstrate a low-temperature vapor-assisted solution process to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale. Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH3NH3PbI3 with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices. The underlying kinetic and thermodynamic parameters regarding the perovskite film growth are discussed as well.