Graphene-oxide doped PEDOT:PSS as a superior hole transport material for high-efficiency perovskite solar cell

Jinzhi Niu, Dong Yang, Xiaodong Ren, Zhou Yang, Yucheng Liu, Xuejie Zhu, Wangen Zhao, Shengzhong (Frank) Liu

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

Inverted perovskite solar cells have attracted a great deal of attention due to its high power conversion efficiency, simple configuration, and low-cost processing. The hole transport material (HTM) is a crucial factor in high performance inverted perovskite solar cell. However, the hole mobility for most common of HTM is too low to matching perovskite materials. Herein, we report a superior HTM with high hole mobility to significantly improve solar cell efficiency. Upon doing the commonly used PEDOT:PSS HTM by graphene oxide (GO), its hole mobility is increased from 5.55 × 10−5 to 1.57 × 10−4 cm2 V−1 s−1, leading to efficient hole extraction and low current leakage, therefore 20% higher power conversion efficiency comparing to the control device without the GO doping. The development open the opportunities for efficient HTMs based on the two-dimensional materials in the perovskite solar cells.

Original languageEnglish (US)
Pages (from-to)165-171
Number of pages7
JournalOrganic Electronics
Volume48
DOIs
StatePublished - Sep 2017

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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