材料科学
场效应晶体管
晶体管
电导率
光电子学
多孔性
金属有机骨架
响应时间
电极
生物传感器
膜
纳米技术
超级电容器
化学工程
电容
复合材料
电压
有机化学
工程类
计算机图形学(图像)
物理化学
吸附
物理
生物
量子力学
遗传学
化学
计算机科学
作者
Bingfang Wang,Yuanyuan Luo,Bo Liu,Guotao Duan
标识
DOI:10.1021/acsami.9b14319
摘要
Ni3(HITP)2, a novel and promising two-dimensional metal-organic framework (MOF) material, has been utilized in the areas of catalysis, sensing, and supercapacitors. It is very suitable for preparing field-effect transistor (FET) devices due to its good conductivity, porous structure, as well as easy film formation. Nevertheless, there is a challenge to transfer membrane materials undamaged to the substrates. Here, we reported a simple approach to fabricate the Ni-MOF-based FET with an in situ grown Ni3(HITP)2 membrane as the channel material of the FET. With this method, we obtained a large-area, dense, and uniform film composed of thin sheets, and the thickness and density of the MOF film were tunable through changing the reaction time. The as-prepared Ni-MOF-FET had a good mobility of 45.4 cm2 V-1 s-1 and on/off current ratio of 2.29 × 103. Moreover, this FET served as a liquid-gated device for the first time with bipolar behavior and good response to the gluconic acid at the range from 10-6 to 10-3 g/mL, verifying the potential of the Ni-MOF-FET as biosensors.
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