Electrical and reducing gas sensing properties of ZnO and ZnO–CuO thin films fabricated by spin coating method

1999 ◽  
Vol 55 (1) ◽  
pp. 47-54 ◽  
Author(s):  
H Youl Bae
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Spin Coating Method ◽  
Reducing Gas ◽  
Gas Sensing Properties ◽  
Coating Method

Preparation of indium oxide thin film by spin-coating method and its gas-sensing properties

1998 ◽  
Vol 46 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Wan-Young Chung ◽  
Go Sakai ◽  
Kengo Shimanoe ◽  
Norio Miura ◽  
Duk-Dong Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Indium Oxide ◽  
Spin Coating ◽  
Gas Sensing ◽  
Oxide Thin Film ◽  
Sensing Properties ◽  
Spin Coating Method ◽  
Gas Sensing Properties ◽  
Coating Method ◽  
Indium Oxide Thin Film

Gas Sensing Properties of Indium Oxide Thin Film on Silicon Substrate Prepared by Spin-Coating Method

1998 ◽  
Vol 37 (Part 1, No. 9A) ◽  
pp. 4994-4998 ◽  
Author(s):  
Wan-Young Chung ◽  
Go Sakai ◽  
Kengo Shimanoe ◽  
Norio Miura ◽  
Duk-Dong Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Indium Oxide ◽  
Silicon Substrate ◽  
Spin Coating ◽  
Gas Sensing ◽  
Oxide Thin Film ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Coating Method ◽  
Indium Oxide Thin Film

scholarly journals Enhancement of Hydrothermally Co3O4 Thin Films as H2S Gas Sensor by Loading Yttrium Element

2019 ◽  
Vol 16 (1) ◽  
pp. 0221
Author(s):  
Hamdan Et al.
Keyword(s):  
Thin Films ◽  
Gas Sensing ◽  
Response Times ◽  
Xrd Analysis ◽  
Sem Analysis ◽  
Sensing Properties ◽  
Nano Structures ◽  
Reducing Gas ◽  
Gas Sensing Properties ◽  
H2s Gas Sensor

The gas sensing properties of Co3O4 and Co3O4:Y nano structures were investigated. The films were synthesized using the hydrothermal method on a seeded layer. The XRD, SEM analysis and gas sensing properties were investigated for Co3O4 and Co3O4:Y thin films. XRD analysis shows that all films are polycrystalline in nature, having a cubic structure, and the crystallite size is (11.7)nm for cobalt oxide and (9.3)nm for the Co3O4:10%Y. The SEM analysis of thin films obviously indicates that Co3O4 possesses a nanosphere-like structure and a flower-like structure for Co3O4:Y. The sensitivity, response time and recovery time to a H2S reducing gas were tested at different operating temperatures. The resistance changes with exposure to the test gas. The results reveal that the Co3O4:10%Y possesses the highest sensitivity around 80% at a 100oC operating temperature when exposed to the reducing gas H2S with 0.8sec for both recovery and response times.

scholarly journals Enhancement of Hydrothermally Co3O4 Thin Films as H2S Gas Sensor by Loading Yttrium Element

2019 ◽  
Vol 16 (1(Suppl.)) ◽  
pp. 0221
Author(s):  
Hamdan Et al.
Keyword(s):  
Thin Films ◽  
Gas Sensing ◽  
Response Times ◽  
Xrd Analysis ◽  
Sem Analysis ◽  
Sensing Properties ◽  
Nano Structures ◽  
Reducing Gas ◽  
Gas Sensing Properties ◽  
H2s Gas Sensor

The gas sensing properties of Co3O4 and Co3O4:Y nano structures were investigated. The films were synthesized using the hydrothermal method on a seeded layer. The XRD, SEM analysis and gas sensing properties were investigated for Co3O4 and Co3O4:Y thin films. XRD analysis shows that all films are polycrystalline in nature, having a cubic structure, and the crystallite size is (11.7)nm for cobalt oxide and (9.3)nm for the Co3O4:10%Y. The SEM analysis of thin films obviously indicates that Co3O4 possesses a nanosphere-like structure and a flower-like structure for Co3O4:Y. The sensitivity, response time and recovery time to a H2S reducing gas were tested at different operating temperatures. The resistance changes with exposure to the test gas. The results reveal that the Co3O4:10%Y possesses the highest sensitivity around 80% at a 100oC operating temperature when exposed to the reducing gas H2S with 0.8sec for both recovery and response times.

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