The effect of radiation parameters on the performance of photo-activated gas sensors

被引：21

作者：

Espid, Ehsan ^{[1
]}

Noce, Aline Satomi ^{[1
]}

Taghipour, Fariborz ^{[1
]}

机构：

[1] Univ British Columbia, Chem & Biol Engn Dept, 2360 East Mall, Vancouver, BC V6T 1Z4, Canada

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2019年 / 374卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Gas sensor; Metal oxide semiconductor; UV-LED; Irradiation parameters; GRAPHITIC CARBON NITRIDE; ROOM-TEMPERATURE; SENSING PROPERTIES; UV-LIGHT; TIN OXIDE; SNO2; ZNO; FILMS; AU; CO;

D O I：

10.1016/j.jphotochem.2019.01.038

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：

The gas sensing characteristics of several favorable metal oxide semiconductors, such as ZnO, In2O3, SnO2, and WO3, under various irradiation conditions, utilizing ultraviolet light emitting diodes (UV-LED), were investigated. The morphology and structure of sensing materials prepared by precipitation route were analyzed, and the sensors' performances were evaluated against low concentrations of NO2. In particular, the effects of several UV source-related operating parameters, such as irradiation wavelength, irradiance, and irradiation pattern, were studied, and the underlying mechanism for the adsorption/desorption kinetics of gas molecules under different UV irradiation was demonstrated. The effect of radiation specifications was found to play an essential role in the response of the sensors. Thus, appropriate conditions must be applied to the design and operation of the UV-LED activated gas sensors for optimal performance.

引用

页码：95 / 105

页数：11

共 37 条

[1] Light enhanced NO2 gas sensing with tin oxide at room temperature:: conductance and work function measurements [J].

Anothainart, K ;

Burgmair, A ;

Karthigeyan, A ;

Zimmer, M ;

Eisele, I .

SENSORS AND ACTUATORS B-CHEMICAL, 2003, 93 (1-3) :580-584

[2] Selective detection of methane and butane by temperature modulation in iron doped tin oxide sensors [J].

Chakraborty, S. ;

Sen, A. ;

Maiti, H. S. .

SENSORS AND ACTUATORS B-CHEMICAL, 2006, 115 (02) :610-613

[3] Visible light activated room temperature gas sensors based on nanocrystalline ZnO sensitized with CdSe quantum dots [J].

Chizhov, A. S. ;

Rumyantseva, M. N. ;

Vasiliev, R. B. ;

Filatova, D. G. ;

Drozdov, K. A. ;

Krylov, I. V. ;

Abakumov, A. M. ;

Gaskov, A. M. .

SENSORS AND ACTUATORS B-CHEMICAL, 2014, 205 :305-312

[4] Sensing properties of Au-loaded SnO2-Co3O4 composites to CO and H2 [J].

Choi, US ;

Sakai, G ;

Shimanoe, K ;

Yamazoe, N .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 107 (01) :397-401

[5] SnO2 RGTO UV activation for CO monitoring [J].

Comini, E ;

Ottini, L ;

Faglia, G ;

Sberveglieri, G .

IEEE SENSORS JOURNAL, 2004, 4 (01) :17-20

[6] UV light activation of tin oxide thin films for NO2 sensing at low temperatures [J].

Comini, E ;

Faglia, G ;

Sberveglieri, G .

SENSORS AND ACTUATORS B-CHEMICAL, 2001, 78 (1-3) :73-77

[7] Light enhanced gas sensing properties of indium oxide and tin dioxide sensors [J].

Comini, E ;

Cristalli, A ;

Faglia, G ;

Sberveglieri, G .

SENSORS AND ACTUATORS B-CHEMICAL, 2000, 65 (1-3) :260-263

[8] Facile Synthesis and UV-Activated Gas Sensing Performance of Ag: ZnO Nano-Ellipsoids [J].

Espid, Ehsan ;

Taghipour, Fariborz .

ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, 2018, 7 (07) :Q3089-Q3093

[9] UV-LED Photo-activated Chemical Gas Sensors: A Review [J].

Espid, Ehsan ;

Taghipour, Fariborz .

CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES, 2017, 42 (05) :416-432

[10] Development of highly sensitive ZnO/In2O3 composite gas sensor activated by UV-LED [J].

Espid, Ehsan ;

Taghipour, Fariborz .

SENSORS AND ACTUATORS B-CHEMICAL, 2017, 241 :828-839

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