Gold nanoparticles incorporated SnO2 thin film: highly responsive and selective detection of NO2 at room temperature

被引：26

作者：

Drmosh, Q. A. ^{[1
]}

Yamani, Z. H. ^{[1
,2
]}

Mohamedkhair, A. K. ^{[2
]}

Hendi, A. H. Y. ^{[2
]}

Hossain, M. K. ^{[3
]}

Ibrahim, Ahmed ^{[4
]}

机构：

[1] King Fahd Univ Petr & Minerals, Ctr Res Excellence Nanotechnol CENT, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Phys Dept, Dhahran 31261, Saudi Arabia

[3] King Fahd Univ Petr & Minerals, Ctr Res Excellence Renewable Energy, Dhahran 31261, Saudi Arabia

[4] King Fahd Univ Petr & Minerals, Mech Engn Dept, Dhahran 31261, Saudi Arabia

来源：

MATERIALS LETTERS | 2018年 / 214卷

关键词：

NO2; sensor; Au nanoparticles; Tin oxide; Thin films; Sputtering; Mechanism; GAS-SENSING PROPERTIES; PERFORMANCE; HYDROGEN; AU; FABRICATION; SENSOR;

D O I：

10.1016/j.matlet.2017.12.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A facile and two-step procedure, sputtering followed by annealing, was adopted to achieve highly dispersed gold nanoparticles on SnO2 film. Morphological observations revealed that the gold nanoparticles were uniformly dispersed over the surface of SnO2 film. The transmittance and crystallinity of the as-fabricated film was found to improve substantially after the heat treatment. The suitability of the as-fabricated thin film for gas sensing was tested by detection of NO2. The results showed high response, and selectivity towards NO2. The response was about 90% to 50 ppm NO2 at room temperature, which was 5.5 and 3.2 times higher than that of the gold layer loaded SnO2, and pristine SnO2 sensors, respectively. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：283 / 286

页数：4

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