New π-extended triphenylene-based organic semiconductors in field-effect transistors

Mai Ha Hoang, Duc Nghia Nguyen, Trinh Tung Ngo, Min Ju Cho, Suk Joong Lee, Dong Hoon Choi

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We demonstrated the synthesis of two new solution-processed triphenylene-based semiconductors and characterized their physical, optical, and electrochemical properties. Both were intriguingly capable of producing smooth films and high-quality microcrystalline objects. The single-crystal-based field-effect transistors (FETs) using these semiconductors displayed a maximum carrier mobility of ∼0.03 cm2 V-1 s-1 and a high on/off current ratio of ∼103. Notably, the mobilities of the single-crystal-based FETs were measured to be two orders of magnitude greater than those of the thin-film transistors. To our knowledge, the carrier mobility obtained in this work is the highest ever reported for single-crystal FETs made of triphenylene analogues.

Original languageEnglish
Article number15069
Pages (from-to)434-440
Number of pages7
JournalSynthetic Metals
Publication statusPublished - 2015 Nov 1

Bibliographical note

Funding Information:
This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number “ 104.02-2013.67 ”. This research was supported by National Research Foundation of Korea ( NRF2012R1A2A1A01008797 ) and by Key Research Institute Program ( NRF20100020209 ). We are grateful to Pohang Accelerator Laboratory (Pohang, Korea) for allowing us to conduct the grazing incidence X-ray diffraction (GI-XRD) measurements.

Publisher Copyright:
© 2015 Elsevier B.V.


  • Conjugated molecule
  • Field-effect transistor
  • Mobility
  • Organic semiconductor
  • Triphenylene

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'New π-extended triphenylene-based organic semiconductors in field-effect transistors'. Together they form a unique fingerprint.

Cite this