Enhancing the photon- and gas-sensing properties of a single SnO2 nanowire based nanodevice by nanoparticle surface functionalization
Enhancing the photon- and gas-sensing properties of a single SnO2 nanowire based nanodevice by nanoparticle surface functionalization
复制标题
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
DOI：
10.1021/jp802880c
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发表时间：
2008-07-31
影响因子：
3.7
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Kuang, Qin;Lao, Chang-Shi;Wang, Zhong Lin
成功地制备了基于单根SnO2纳米线的场效应晶体管，并研究了其光、气敏特性。结果表明，ZnO或NiO纳米粒子的表面功能化显著提高了单根SnO2纳米线基器件的灵敏度。表面涂层和SnO2之间的异质结以及两种传感材料的相应耦合效应在控制器件灵敏度方面起着关键作用。
Field-effect transistors based on a single SnO2 nanowire were successfully fabricated, and their photon- and gas-sensing properties were investigated. It is found that the sensitivity of single SnO2 nanowire based devices was remarkably improved by surface functionalization with ZnO or NiO nanoparticles. The heterojunction between the surface coating layers and SnO2 and the corresponding coupling effect of the two sensing materials play a critical role in controlling device sensitivity.