Synthesis and characterization of CuO-SnO2 nanocomposite and its application as liquefied petroleum gas sensor

被引：40

作者：

Singh, Satyendra ^{[1
]}

Verma, Nidhi ^{[1
]}

Singh, Archana ^{[1
]}

Yadav, B. C. ^{[1
,2
]}

机构：

[1] Univ Lucknow, Dept Phys, Lucknow 226007, Uttar Pradesh, India

[2] Babasaheb Bhimrao Ambedkar Univ, Sch Phys Sci, Dept Appl Phys, Lucknow 226025, Uttar Pradesh, India

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2014年 / 18卷

关键词：

LPG sensor; Sensitivity Sensor response; Optical band gap; Surface morphology; SNO2; THIN-FILMS; ELECTRICAL-PROPERTIES; SENSING PROPERTIES; LPG; SENSITIVITY; COPPER; SIZE; MICROSTRUCTURE; CO; CU;

D O I：

10.1016/j.mssp.2013.11.002

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Present paper reports the synthesis of CuO-SnO2 nanocomposite via sol-gel route as a sensing material for a liquefied petroleum gas (LPG). X-ray diffraction analysis confirmed the formation of CuO-SnO2 nanocomposite. Crystallite size was found 5 nm. The optical band gap of the nanocomposite was found 4.1 eV. The thin/thick films were fabricated using spin coating and screen printing technology respectively and investigated with the exposition of LPG at room temperature (25 degrees C). Surface morphology of the thin film exhibits that it has a number of gas adsorption sites. The sensitivities of the thick and thin film sensors were found 4.1 and 42 respectively. The response and recovery times of the fabricated film sensor were 180 and 200 s respectively. Maximum sensor response of thin film sensor was found 4100. Better sensitivity and percentage sensor response, small response and recovery times, and good reproducibility and stability recognize the fabricated thin Film of CuO-SnO2 as a challenging material for the detection of LPG. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：88 / 96

页数：9

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