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General Chemistry ›› 2019, Vol. 5 ›› Issue (2): 180026-180026.DOI: 10.21127/yaoyigc20180026

Special Issue: Organic Optoelectronics & Photonics

• Minireviews • Previous Articles     Next Articles

A-D-A Structured Small-Molecule Hole Transporting Materials for Dopant-Free Perovskite Solar Cells

Yuanyuan Kan, Bo Xu, Ke Gao*   

  1. Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, the United States
  • Online:2019-06-29 Published:2019-06-27
  • Supported by:
    Email: kegao@uw.edu ( K. G.)

Abstract: Hole-transporting materials (HTMs) are necessary for highly efficient perovskite solar cells (PSCs) to enable the hole carriers extraction and transport. There are designed varieties of HTMs so far, including small molecules and polymers. However, most of them have to be doped to get the high mobility and conductivity. Otherwise, the dopant will deteriorate the long-term stability and efficiency, which is a bottleneck for the commercialization of PSCs. The development for non-doping HTMs, which can replace the traditional doped HTMs, brings great hope to this field. Among them, acceptor (A)-donor (D)-acceptor (A) type non-doping HTMs are an important portion. In this min-review, we summarize all the A-D-A type non-doping HTMs and their properties.

Key words: perovskite solar cells, hole transporting materials, non-doping, A-D-A structure

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