Unusually high-performing organic field-effect transistors based on π-extended semiconducting porphyrins

Mai Ha Hoang, Youngmee Kim, Minsik Kim, Kyung Hwan Kim, Tae Wan Lee, Duc Nghia Nguyen, Sung Jin Kim, Kwangyeol Lee, Suk Joong Lee, Dong Hoon Choi

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Highly conjugated porphyrin derivatives, H2TP and ZnTP, are synthesized. J-aggregations of the H-aggregated dimeric porphyrin pairs are clearly observed by their single crystal structures that facilitate slip-stacked charge transport phenomenon. In particular, their SC-FETs show the highest field-effect mobilities of 0.85-2.90 cm2 V-1s -1. Furthermore, the ZnTP-based OPT displays a dramatic photoinduced current enhancement with a high photoresponsivity of 22 000 A W-1 under a very low light intensity (5.6 m W cm-2).

Original languageEnglish
Pages (from-to)5363-5367
Number of pages5
JournalAdvanced Materials
Volume24
Issue number39
DOIs
StatePublished - 9 Oct 2012

Keywords

  • field effect transistors
  • molecular aggregation
  • organic semiconductors
  • phototransistor
  • porphyrin
  • single crystals

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