Iodine doping enabled wide range threshold voltage modulation in pentacene transistors

Yu Wu Wang, Yu Chung Chang, Ming Yue Hong

Research output: Contribution to journalArticle


We demonstrate an ultra-high range of threshold voltage modulation in pentacene transistors by iodine doping. Through diffusion control and thermal treatments, the transistor's threshold voltage can be tuned in a wide range of more than 100 V from enhance mode to deep depletion mode. The correlation between physical and electrical characteristics was investigated to elucidate the modulation mechanism. The results suggest an optimistic potential for pentacene transistors in high voltage device applications. The transistors in this research exhibit a high field effect mobility of ~0.18 cm2/Vs and on/off ratio ~105.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
JournalThin Solid Films
Publication statusPublished - 2019 Jan 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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