High-performance all-polymer solar cells via side-chain engineering of the polymer acceptor: The importance of the polymer packing structure and the nanoscale blend morphology

Changyeon Lee, Hyunbum Kang, Wonho Lee, Taesu Kim, Ki Hyun Kim, Han Young Woo, Cheng Wang, Bumjoon J. Kim

Research output: Contribution to journalArticle

220 Citations (Scopus)

Abstract

The effectiveness of side-chain engineering is demonstrated to produce highly efficient all-polymer solar cells (efficiency of 5.96%) using a series of naphthalene diimide-based polymer acceptors with controlled side chains. The dramatic changes in the polymer packing, blend morphology, and electron mobility of all-polymer solar cells elucidate clear trends in the photovoltaic performances.

Original languageEnglish
Pages (from-to)2466-2471
Number of pages6
JournalAdvanced Materials
Volume27
Issue number15
DOIs
Publication statusPublished - 2015 Apr 17
Externally publishedYes

Keywords

  • all-polymer solar cells
  • BHJ morphology
  • high efficiency
  • polymer crystallinity
  • side-chain engineering

ASJC Scopus subject areas

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

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