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首页> 外文会议>2018 IEEE International Microwave Biomedical Conference >Towards High-Transconductance Graphene High-Speed Biosensors
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Towards High-Transconductance Graphene High-Speed Biosensors

机译：迈向高跨导石墨烯高速生物传感器

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摘要

Graphene is a new material that is promising for application in microwave electronics as it features high mobility and is compatible with standard nanofabrications techniques. Graphene is also extremely sensitive to the environment due to its two dimensional nature, is mechanically robust, biocompatible, and can be easily functionalized. As such, graphene based devices are good candidates for high-speed biosensors. In this work, we present flexible back-gated graphene transistors where the channel is exposed, an important difference with standard high frequency field effect transistors (FETs). We present DC and RF characterization to demonstrate solid performances, then we discuss transconductance measurements and their scaling as a function of channel width. These results can be helpful for design of highspeed graphene based biosensors where large sensing areas and high speeds are needed.
机译：石墨烯是一种新型材料，具有高迁移率并与标准纳米加工技术兼容，有望用于微波电子领域。石墨烯由于具有二维特性，因此对环境也极为敏感，具有机械坚固性，生物相容性和易于功能化的特点。这样，基于石墨烯的设备是高速生物传感器的良好候选者。在这项工作中，我们提出了在沟道暴露在其中的柔性背栅石墨烯晶体管，这是与标准高频场效应晶体管（FET）的重要区别。我们介绍了直流和射频特性，以证明其出色的性能，然后我们讨论了跨导测量及其随通道宽度的变化。这些结果对于需要大传感面积和高速度的基于石墨烯的高速生物传感器的设计很有帮助。

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