Low-Cost Carbazole-Based Hole-Transport Material for Highly Efficient Perovskite Solar Cells

ChemSusChem. 2017 Aug 10;10(15):3111-3117. doi: 10.1002/cssc.201700678. Epub 2017 Jul 27.

Abstract

A low-cost carbazole-based small-molecule material, 1,3,6,8-tetra(N,N-p-dimethoxyphenylamino)-9-ethylcarbazole, was designed and synthesized through a facile three-step synthetic route. The material was characterized and applied as a hole-transport material (HTM) for low-temperature-processed planar perovskite solar cells (PSCs). Devices based on this new HTM exhibit a high power-conversion efficiency of 17.8 % that is comparable to that of PSCs based on the costly 2,2',7,7'-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene (Spiro-OMeTAD) (18.6 %) .

Keywords: carbazoles; hole-transport material; nitrogen heterocycles; perovskite; solar cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calcium Compounds / chemistry*
  • Carbazoles / chemistry*
  • Costs and Cost Analysis
  • Electric Power Supplies / economics*
  • Oxides / chemistry*
  • Solar Energy*
  • Titanium / chemistry*

Substances

  • Calcium Compounds
  • Carbazoles
  • Oxides
  • carbazole
  • perovskite
  • Titanium