Cost-effective nebulizer sprayed ZnO thin films for enhanced ammonia gas sensing - Effect of deposition temperature

被引：30

作者：

Ravichandran, K. ^{[1
]}

Manivasaham, A. ^{[1
]}

Subha, K. ^{[1
,2
]}

Chandrabose, A. ^{[3
]}

Mariappan, R. ^{[4
]}

机构：

[1] AVVM Sri Pushpam Coll Autonomous, PG & Res Dept Phys, Mat Sci Res Lab, Thanjavur 613503, Tamil Nadu, India

[2] Kunthavai Naachiyaar Govt Arts Coll Women Autonom, Res Dept Phys, Thanjavur 613007, Tamil Nadu, India

[3] Natl Inst Technol, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India

[4] Adhiyamaan Coll Engn, Dept Phys, Hosur 635109, Tamil Nadu, India

来源：

SURFACES AND INTERFACES | 2016年 / 1-3卷

关键词：

ZnO thin films; Gas sensors; Ammonia; FESEM; Grain size; TRANSPARENT CONDUCTING PROPERTIES; ANTIBACTERIAL PROPERTIES; PLUS F; SUBSTRATE-TEMPERATURE; SENSOR; PYROLYSIS; NANOSTRUCTURES; PERFORMANCE;

D O I：

10.1016/j.surfin.2016.06.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

ZnO thin films were deposited onto glass substrates using a simple and low-cost homemade nebulizer spray technique by keeping the substrate temperature at 350, 400 and 450 degrees C. Their ammonia gas sensing property at room temperature under darkness was studied. The results show that the ZnO films deposited at 400 degrees C substrate temperature exhibit the best response time as well as shortest recovery time. The large number of oxygen vacancies presents in this film and the suitable surface morphology with increased surface to volume ratio may be the reasons for the enhanced gas sensing property of this sample. The photoluminescence, FESEM and XRD results are correlated appropriately with the gas sensing properties of the samples. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：13 / 20

页数：8

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