Broad work-function tunability of p-type conjugated polyelectrolytes for efficient organic solar cells

Byoung Hoon Lee, Jong Hoon Lee, Song Yi Jeong, Sae Byeol Park, Seoung Ho Lee, Kwanghee Lee

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

p-Type conjugated polyelectrolytes (CPEs) are developed as organic-based work-function-modifier materials for the broad work-function (WF) tunability of various metal electrodes. Facile oxidative treatments of n-type CPEs using various oxidants produce unprecedented p-type CPEs with reversed electronic properties corresponding to n-type CPEs, resulting in fine WF tuning of adjacent metal electrodes. This change leads to substantial increases in power conversion efficiency and lifetime of organic solar cells.

Original languageEnglish
Article number1401653
JournalAdvanced Energy Materials
Volume5
Issue number5
DOIs
StatePublished - 1 Mar 2015

Keywords

  • conjugated polyelectrolytes
  • interfacial dipoles
  • organic solar cells
  • self-doping
  • work-function tuning

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