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Updated: Jun 29, 2026

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

作为pH传感器的溶液入的表轴石墨烯.

Priscilla Kailian Ang¹, Wei Chen, Andrew Thye Shen Wee

¹Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.

Journal of the American Chemical Society

|October 15, 2008

概括

在几层石墨烯上制造的溶液门场效应晶体管表现出双极特性. 这项研究强调了石墨烯.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
电化学电化学电化学

背景情况:

几层石墨烯 (FLG) 具有独特的电子特性.
解决方案门场效应晶体管 (SGFET) 对于传感应用至关重要.

研究的目的:

使用少数层石墨烯 (FLG) 制造和描述一个溶液门场效应晶体管 (SGFET).
调查基于FLG的SGFET的电化学行为和传感能力.

主要方法:

使用少数层石墨烯制造SGFET装置.
石墨烯/水性电解质接口的电化学表征.
导电率与门电位和pH响应的测量.

主要成果:

该FLG-SGFET显示V形双极转移特征.
实现了高孔和电子流动性,分别为3600 cm2/Vs和2100 cm2/Vs.
观察到99 meV/pH的超纳斯蒂安pH响应.

结论:

理想的极化石墨烯/电解质接口可促进电容充电.
FLG-SGFET显示出超快速和超低噪声化学和生物传感的潜力.

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