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: physics, materials, applications
Volume15
Issue number7
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Acetylene
Photovoltaic cells
Anthracene
photovoltaic cells
Thin film transistors
anthracene
Solar cells
transistors
solar cells
p-type semiconductors
Molecules
Hole mobility
Semiconducting organic compounds
hole mobility
Heterojunction bipolar transistors
organic semiconductors
thin films
Crystallites
crystallites
Conversion efficiency

Keywords

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

ASJC Scopus subject areas

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

Cite this

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

In: Organic Electronics: physics, materials, applications, Vol. 15, No. 7, 01.01.2014, p. 1521-1530.

Research output: Contribution to journalArticle

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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.",
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AU - Shin, Jicheol

AU - Kang, Nam Su

AU - Lee, Tae Wan

AU - Cho, Min Ju

AU - Hong, Jae Min

AU - Ju, Byeong Kwon

AU - Choi, Dong Hoon

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