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A high sensitivity and selectivity n-butanol sensor based on monodispersed Pd-doped SnO 2 nanoparticles mediated by glucose carbonization
Semiconductor Science and Technology ( IF 1.9 ) Pub Date : 2020-08-10 , DOI: 10.1088/1361-6641/ab9d08
Zhiqiang Yao 1 , Xi Wang 2 , Man Yang 2 , He Ma 1 , Yanfeng Sun 2 , Hong Zhang 2 , Tianwei Dong 1 , Weifeng Liu 1
Affiliation  

Doping of noble metals into semiconductors is often used to enhance the response of gas sensors, accompanying the decrease of the particle size. In this work, pure and palladium-doped dispersive nanoscale tin dioxide nanoparticles with abundant surface defects are synthesized efficiently via a facile hydrothermal method. In the experiment, glucose is used as the carbon source to limit the growth of crystals through the carbonization process and create abundant surface defects after high temperature calcination. Compared with pure SnO 2 , Pd doping only slightly decreases the particle size with the increase of palladium doping amount from 11.9 nm to 9.6 nm. A gas-sensing investigation indicates that the sensor devices based on pure and 1 at%, 3 at%, 5 at% palladium-doped SnO 2 show an obvious high response to n-butanol. In particular, the response to n-butanol reaches to the maximum with the palladium doping amount of 3 at%, and the response increases from 33.3...

中文翻译:

基于葡萄糖碳化介导的单分散钯掺杂SnO 2纳米粒子的高灵敏度和选择性正丁醇传感器

伴随着粒径的减小,通常将贵金属掺杂到半导体中来增强气体传感器的响应。在这项工作中,通过简便的水热方法有效地合成了具有丰富表面缺陷的纯钯掺杂的分散纳米级二氧化锡纳米颗粒。在实验中,葡萄糖被用作碳源,以限制碳化过程中晶体的生长,并在高温煅烧后产生大量的表面缺陷。与纯SnO 2相比,Pd掺杂仅随钯掺杂量从11.9 nm增加到9.6 nm而略微减小。气体感测研究表明,基于纯钯和1at%,3at%,5at%掺杂钯的SnO 2的传感器器件显示出对正丁醇的明显高响应。尤其是,
更新日期:2020-08-11
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