• 文献标题:   Experimental Observation and Modeling of the Impact of Traps on Static and Analog/HF Performance of Graphene Transistors
  • 文献类型:   Article
  • 作  者:   PACHECOSANCHEZ A, MAVREDAKIS N, FEIJOO PC, WEI W, PALLECCHI E, HAPPY H, JIMENEZ D
  • 作者关键词:   logic gate, graphene, hysteresi, performance evaluation, transistor, pulse measurement, voltage measurement, analytical model, channel potential, graphene fieldeffect transistor gfet, highfrequency hf performance, hysteresi, opposing pulse, trap
  • 出版物名称:   IEEE TRANSACTIONS ON ELECTRON DEVICES
  • ISSN:   0018-9383 EI 1557-9646
  • 通讯作者地址:   Univ Autonoma Barcelona
  • 被引频次:   0
  • DOI:   10.1109/TED.2020.3029542
  • 出版年:   2020

▎ 摘  要

The trap-induced hysteresis on the performance of a graphene field-effect transistor is experimentally diminished here by applying consecutive gate-to-source voltage pulses of opposing polarity. This measurement scheme is a practical and suitable approach to obtain reproducible device characteristics. Trap-affected and trap-reduced experimental data enable a discussion regarding the impact of traps on static and dynamic device performance. An analytical drain current model calibrated with the experimental data enables the study of the trap effects on the channel potential within the device. High-frequency (HF) figures of merit and the intrinsic gain of the device obtained from both experimental and synthetic data with and without hysteresis show the importance of considering the generally overlooked impact of traps for analog and HF applications.