Chen Weiwu, Qin Zhaojun, Liu Yingkai, Zhang Yan, Li Yanbo, Shen Si, Wang Zhiming M, Song Hai-Zhi
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China.
Institute of Physics and Electronic Information Technology, Yunnan Normal University, Kunming, 650500, People's Republic of China.
Nanoscale Res Lett. 2017 Dec;12(1):405. doi: 10.1186/s11671-017-2177-7. Epub 2017 Jun 12.
SnO nanobelts (NBs) have unique structural and functional properties which attract great attention in gas detecting. In this work, Eu doping is adopted to improve the gas sensitivity of pure SnO, especially to enhance the response to one single gas. The Eu-doped SnO NBs, pure-SnO NBs, and their single NB devices are fabricated by simple techniques. The sensing properties of the two sensors have been experimentally investigated. It is found that the two sensors possess long-term stability with rapid response performance, and Eu doping improves the electronic performance and the gas-sensing response, particularly to acetone. In addition, the effects aroused by Eu have been theoretically calculated, which indicates that Eu doping enhances the sensing performance of SnO. Consequently, Eu-doped SnO NBs show great potential applications in the detection of acetone.
二氧化锡纳米带（NBs）具有独特的结构和功能特性，在气体检测中备受关注。在这项工作中，采用铕（Eu）掺杂来提高纯二氧化锡的气敏性，特别是增强对单一气体的响应。通过简单的技术制备了铕掺杂的二氧化锡纳米带、纯二氧化锡纳米带及其单纳米带器件。对这两种传感器的传感特性进行了实验研究。发现这两种传感器具有长期稳定性和快速响应性能，铕掺杂改善了电子性能和气敏响应，尤其是对丙酮的响应。此外，从理论上计算了铕所引起的效应，这表明铕掺杂增强了二氧化锡的传感性能。因此，铕掺杂的二氧化锡纳米带在丙酮检测中显示出巨大的潜在应用价值。
