High-Performance Organic Bulk-Heterojunction Solar Cells Based on Multiple-Donor or Multiple-Acceptor Components

Wenchao Huang, Pei Cheng, Yang Michael Yang, Gang Li, Yang Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

108 Citations (Scopus)

Abstract

Organic solar cells (OSCs) based on bulk heterojunction structures are promising candidates for next-generation solar cells. However, the narrow absorption bandwidth of organic semiconductors is a critical issue resulting in insufficient usage of the energy from the solar spectrum, and as a result, it hinders performance. Devices based on multiple-donor or multiple-acceptor components with complementary absorption spectra provide a solution to address this issue. OSCs based on multiple-donor or multiple-acceptor systems have achieved power conversion efficiencies over 12%. Moreover, the introduction of an additional component can further facilitate charge transfer and reduce charge recombination through cascade energy structure and optimized morphology. This progress report provides an overview of the recent progress in OSCs based on multiple-donor (polymer/polymer, polymer/dye, and polymer/small molecule) or multiple-acceptor (fullerene/fullerene, fullerene/nonfullerene, and nonfullerene/nonfullerene) components.

Original languageEnglish
Article number1705706
JournalAdvanced Materials
Volume30
Issue number8
DOIs
Publication statusPublished - 22 Feb 2018

Keywords

  • morphology
  • multiple acceptors
  • multiple donors
  • organic solar cells
  • ternary

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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