Two-dimensional π-conjugated molecules based-on 2,6,9,10-tetra(prop-1- yn-1-yl)anthracene and their application to solution-processed photovoltaic cells

Jicheol Shin, Nam Su Kang, Tae Wan Lee, Min Ju Cho, Jae Min Hong, Byeong Kwon Ju, Dong Hoon Choi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Novel two-dimensional π-conjugated molecules, i.e., 5′, 5″′-((9,10-bis((4-hexylphenyl)ethynyl)anthracene-2,6-diyl) bis(ethyne-2,1-diyl))bis(5-hexyl-2,2′-bithiophene) (2,6-HBT) and 5′,5″′-((2,6-bis((4-hexylphenyl)ethynyl)anthracene-9,10-diyl) bis(ethyne-2,1-diyl))bis(5-hexyl-2,2′-bithiophene) (9,10-THB) were successfully synthesized and utilized as highly soluble p-type organic semiconductors for organic thin film transistors (TFTs) and solar cells. From the TFTs, the high hole mobility of the pristine film of 9,10-THB was measured to be 0.07 cm2 V-1 s-1 (Ion/off = 106-107), which is mainly attributed to slip-stacked charge-transport behavior in J-aggregation-induced crystallites. Further, a solution-processed solar cell made of 9,10-THB and PC61BM exhibited very promising and reproducible power conversion efficiencies of 3.30% and 2.53% with composition 1:1 and 1:2 w/w ratio, respectively.

Original languageEnglish
Pages (from-to)1521-1530
Number of pages10
JournalOrganic Electronics
Volume15
Issue number7
DOIs
Publication statusPublished - 2014 Jul

Keywords

  • Bulk heterojunction
  • Organic semiconductor
  • Photovoltaic cell
  • Substitution position
  • Tetra(prop-1-yn-1-yl)anthracene
  • Thin film transistor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Two-dimensional π-conjugated molecules based-on 2,6,9,10-tetra(prop-1- yn-1-yl)anthracene and their application to solution-processed photovoltaic cells'. Together they form a unique fingerprint.

  • Cite this