One-dimensional nanostructure field-effect sensors for gas detection.

One-dimensional nanostructure field-effect sensors for gas detection.
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用于气体检测的一维纳米结构场效应传感器

DOI:
10.3390/s140813999
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发表时间:
2014-07-31
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Liu Y
Liu Y
中科院分区:
其他
文献类型:
--
作者:
Zhao X;Cai B;Tang Q;Tong Y;Liu Y

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最近;一维(1D)纳米结构场效应晶体管(FET)由于其在气体传感中的潜在应用而吸引了很多关注。微纳场效应传感器联合收割机结合了一维纳米结构的优点和场调制的特性。一维纳米结构提供了大的表面积-体积比;这对于具有高灵敏度和快速响应的气体传感器来说是一个突出的优势。此外,单晶的性质有利于研究响应机制。另一方面,场效应传感器的一个主要优点是提供了额外的栅电极以实现电流调制;从而当在亚阈值状态下操作传感器时,可以通过改变电导率来显著提高灵敏度。本文综述了一维纳米结构场效应晶体管在气体检测领域的最新进展。传感器的配置,性能以及它们的传感机制进行了评价。
Recently; one-dimensional (1D) nanostructure field-effect transistors (FETs) have attracted much attention because of their potential application in gas sensing. Micro/nanoscaled field-effect sensors combine the advantages of 1D nanostructures and the characteristic of field modulation. 1D nanostructures provide a large surface area-volume ratio; which is an outstanding advantage for gas sensors with high sensitivity and fast response. In addition; the nature of the single crystals is favorable for the studies of the response mechanism. On the other hand; one main merit of the field-effect sensors is to provide an extra gate electrode to realize the current modulation; so that the sensitivity can be dramatically enhanced by changing the conductivity when operating the sensors in the subthreshold regime. This article reviews the recent developments in the field of 1D nanostructure FET for gas detection. The sensor configuration; the performance as well as their sensing mechanism are evaluated.
通过纳米粒子表面功能化增强基于单 SnO2 纳米线的纳米器件的光子和气体传感特性
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