Porphyrin-Containing Polymer as a Superior Blue Light-Absorbing Additive to Afford High- J sc Ternary Solar Cells

Chia-Hua Li, Chia-Chih Chang, Yu-Hsuan Hsiao, Shih-Hao Peng, Yi-Jia Su, Soo-Won Heo, Keisuke Tajima, Ming-Chi Tsai, Ching-Yao Lin*, Chain-Shu Hsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Integrating an additional component featuring complementary light absorption into binary polymer solar cells is a superior tactic to ameliorate solar cell efficiency and stability. An appropriate additive not only extends the absorption range but may also facilitate charge separation and transport processes. In this work, we elucidate the effects of incorporating a porphyrin-containing conjugated polymer (PPor-1), which displays absorption in 350-500 nm, into binary PTB7-Th:4TIC and PTB7-Th:ITIC blends, affording devices with an average power conversion efficiency approaching 9%. We successfully demonstrate that PPor-1 can be incorporated as an additive to impart improved J sc (up to 19.1 mA cm -2 ).

Original languageEnglish
Pages (from-to)1156-1162
Number of pages7
JournalACS Applied Materials and Interfaces
Volume11
Issue number1
DOIs
StatePublished - 9 Jan 2019

Keywords

  • blue light absorption
  • non-fullerene acceptors
  • organic photovoltaics
  • porphyrin
  • ternary solar cell

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