Improving photovoltaic properties of P3HT:IC60BA through the incorporation of small molecules

Binrui Xu, Gopalan Sai-Anand, Anantha Iyengar Gopalan, Qiquan Qiao, Shin Won Kang

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We investigated the role of a functional solid additive, 2,3-dihydroxypyridine (DHP), in influencing the optoelectronic, morphological, structural and photovoltaic properties of bulk-heterojunction-based polymer solar cells (BHJ PSCs) fabricated using poly(3-hexylthiophene): indene-C60 bisadduct (P3HT:IC60BA) photoactive medium. A dramatic increase in the power conversion efficiency (~20%) was witnessed for the BHJ PSCs treated with DHP compared to the pristine devices. A plausible explanation describing the alignment of pyridine moieties of DHP with the indene side groups of IC60BA is presented with a view to improving the performance of the BHJ PSCs via improved crystalline order and hydrophobicity changes.

Original languageEnglish (US)
Article number121
JournalPolymers
Volume10
Issue number2
DOIs
StatePublished - Jan 26 2018
Externally publishedYes

Keywords

  • Additive
  • Bulk-heterojunction
  • Morphology
  • Polymer solar cells
  • Ternary blend

ASJC Scopus subject areas

  • Chemistry(all)
  • Polymers and Plastics

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