Study on Ammonia Gas Sensing Property of Hydrothermally Synthesized Pure ZnO Nanorods

被引：8

作者：

Siril, V. S. ^{[1
]}

Madhusoodanan, K. N. ^{[1
]}

Rajan, Sinjumol K. ^{[2
]}

Louis, Godfrey ^{[2
]}

机构：

[1] Cochin Univ Sci & Technol, Dept Instrumentat, Cochin 682022, Kerala, India

[2] Cochin Univ Sci & Technol, Dept Phys, Cochin 682022, Kerala, India

来源：

LET THERE BE LIGHT: REFLECTIONS OF A CONGRESS ON LIGHT | 2017年 / 1849卷

关键词：

GRAIN-SIZE; SENSORS; ARRAYS;

D O I：

10.1063/1.4984180

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Zno sensors were fabricated from flower like nanorods prepared by hydrothermal method. Thick films of pure ZnO were prepared for gas sensing application. Different sample characterization techniques have been employed, such as, XRD, SEM, FESEM, TEM etc. XRD pattern ZnO samples reveal hexagonal wurtzite structure of the sample. The average crystallite size for ZnO sensor was found to be 31 mn. The sensitivity, operating temperature, response time and recovery time of the ZnO based gas sensor were investigated in terms of the response to reducing gas NH3. The lowest detection limit for ammonia gas was about 5 ppm at an operating temperature of 230 degrees C.

引用

页数：8

共 17 条

[1] Characterization of ozone sensors based on WO3 reactively sputtered films:: influence O2 concentration in the sputtering gas and working temperature
Bendahan, M
Boulmani, R
Seguin, JL
Aguir, K
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2004, 100 (03) : 320 - 324
[2] Cullity B.D., 2001, ELEMENTS XRAY DIFFRA, P402
[3] Dev A, 2006, J PHYS CHEM B, V110, P14266, DOI 10.1021/jp0627291
[4] Crystallographic orientation-aligned ZnO nanorods grown by a tin catalyst
Gao, PX
Ding, Y
Wang, IL
[J]. NANO LETTERS, 2003, 3 (09) : 1315 - 1320
[5] Synthesis and optical properties of nanometer to micrometer wide hexagonal cones and columns of ZnO
Ghoshal, Tandra
Kar, Soumitra
Chaudhuri, Subhadra
[J]. JOURNAL OF CRYSTAL GROWTH, 2006, 293 (02) : 438 - 446
[6] High temperature Ga2O3-gas sensors and SnO2-gas sensors:: a comparison
Hoefer, U
Frank, J
Fleischer, M
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2001, 78 (1-3) : 6 - 11
[7] Kebbab Z, 2001, PHYSICA B, V296, P319
[8] Room temperature solution synthesis of monodispersed single-crystalline ZnO nanorods and derived hierarchical nanostructures
Liu, B
Zeng, HC
[J]. LANGMUIR, 2004, 20 (10) : 4196 - 4204
[9] Hydrothermal synthesis of ZnO nanorods in the diameter regime of 50 nm
Liu, B
Zeng, HC
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (15) : 4430 - 4431
[10] Study on sensitivity of nano-grain ZnO gas sensors
Ma, Y.
Wang, W.L.
Liao, K.J.
Kong, C.Y.
[J]. Journal of Wide Bandgap Materials, 2002, 10 (02): : 113 - 120

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