Light-emitting organic field-effect transistors based on highly luminescent single crystals of thiophene/phenylene co-oligomers

研究成果: ジャーナルへの寄稿記事

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A series of thiophene/phenylene co-oligomers containing π-conjugated anthracene, naphthalene, and biphenyl central cores have been developed as new organic laser active materials. Light-emitting organic field-effect transistors (LE-OFETs) based on 2,6-bis(5-phenylthiophen-2-yl)anthracene (BPTA), 2,6-bis(5-phenylthiophen-2-yl)naphthalene (BPTN), and 2,6-bis(5-phenylthiophen- 2-yl)-1,1′-biphenyl (BPTB) single crystals were fabricated. A clear laser oscillation was observed for BPTN and BPTB single crystals. Especially for BPTB, a low amplified spontaneous emission threshold of 1.8 ± 0.2 μJ cm-2 was achieved. In addition, all of the devices showed ambipolar transport characteristics, in which both electron and hole carriers are transported in a single FET device, and electroluminescence was clearly observed. An obvious difference in the light emission direction was observed for LE-OFET devices, which is attributed to the difference in transition dipole moment arrangement of individual molecules within the crystal. This journal is

元の言語英語
ページ(範囲)4918-4921
ページ数4
ジャーナルJournal of Materials Chemistry C
2
発行部数25
DOI
出版物ステータス出版済み - 7 7 2014

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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