Materials Research Express (Jan 2021)

Single and dual-gate organic field-effect transistors based on diketopyrrolopyrrole-diethienothiophene polymers: performance modulation via dielectric interfaces

  • Basanagouda B Patil,
  • Yasunori Takeda,
  • Subhash Singh,
  • Amandeep Singh,
  • Thu Trang Do,
  • Kostya (Ken) Ostrikov,
  • Samarendra P Singh,
  • Shizuo Tokito,
  • Ajay K Pandey,
  • Prashant Sonar

DOI
https://doi.org/10.1088/2053-1591/ac1fb6
Journal volume & issue
Vol. 8, no. 9
p. 096301

Abstract

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Low-power, flexible, and properly encapsulated integrated circuits are the basic requirements of the solution-processed printed and wearable electronic prototypes for various emerging applications including display circuits, sensors, and radio-frequency identification tags. The organic field-effect transistor is one of the important types of devices used in such prototypes and its industrial applicability is essential for the printed electronics technology. The performance deterioration upon encapsulated through the thick layer of air-stable dielectric material such as amorphous fluoropolymer [CYTOP] - must be compensated by device engineering. In this work, we used furan and thiophene flanked diketopyrrolopyrrole donor-acceptor conjugated polymers namely PDPPF-DTT and PDPPT-DTT, and its comparative study was performed using Cytop as a dielectric material. The work advances interface engineering towards the single-gate and dual-gate organic transistors. Dual-gate transistors performance modulation using Cytop dielectric opens new research avenues towards stability enhancement of such transistors for real-world applications.

Keywords