IEEE Journal of the Electron Devices Society (Jan 2023)

Quantitative Measurement of Interface State Density in Donor-Acceptor Polymer Transistors

  • Biaobiao Ding,
  • Yichen Zhu,
  • Run Li,
  • Guangan Yang,
  • Jie Wu,
  • Li Zhu,
  • Xiang Wan,
  • Zhihao Yu,
  • Chee Leong Tan,
  • Yong Xu,
  • Huabin Sun

DOI
https://doi.org/10.1109/JEDS.2023.3270583
Journal volume & issue
Vol. 11
pp. 282 – 287

Abstract

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Donor-Acceptor (D-A) polymer field-effect transistors (pFETs) are at the cutting edge of organic electronics. However, some fundamental cognition of interface states remains unquantified, particularly at different dynamic scales. In this study, the interface states of D-A polymer transistors are quantified using the dynamic pumping method. The experimental results indicate that the interface state density of the transistor is insensitive to the measurement pulse condition and stays within the range of $ {10}^{ {12}}\,\,\sim \,\, {10}^{ {13}}\,\,\rm {cm}^{ {-2}}$ . The experiments described in this paper provide a quantitative analysis of interface states. This analysis can serve as effective guidance for optimizing future devices.

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