Room‐Temperature NO2 Gas Sensing with Ultra‐Sensitivity Activated by Ultraviolet Light Based on SnO2 Monolayer Array Film

Chemiresistive‐type gas sensors, which are driven by the thermal activation, have exhibited extraordinary promise for the detection of air pollutions, such as highly toxic gas of nitrogen dioxide (NO2), but are often limited to its high operating temperature, because of the raising explosive risk in inflammable gases. This study reports the construction of a close‐packed SnO2 monolayer film, and uses it as the NO2 room‐temperature sensing layer induced by ultraviolet (UV)‐light irradiation. Such SnO2 monolayer array film shows excellent sensing performances toward NO2 gas with a striking selectivity under the UV‐light irradiation even in high humidity. Additionally, by precisely controlling the sensing film thickness, it is observed that the NO2 sensing characteristics can be optimized to provide ultra‐selectivity and high gas response. Through the systematic analysis, it reveals that the “clean effect” of UV‐light for surface‐adsorbed O2b− ions and the competitive adsorption between NO2 and O2 gas during sensing process are responsible for the possible sensing mechanism. More importantly, this work exhibits the intrinsic relation between sensing performances and the film thickness under the UV‐light illumination, which is of vital importance to actual sensing requirements.

[1]  C B Wilson,et al.  Sensors 2010. , 1999, BMJ.

[2]  A. Gurlo,et al.  Interplay between O2 and SnO2: oxygen ionosorption and spectroscopic evidence for adsorbed oxygen. , 2006, Chemphyschem : a European journal of chemical physics and physical chemistry.

[3]  N. Bârsan,et al.  Metal oxide-based gas sensor research: How to? , 2007 .

[4]  Vinayak P. Dravid,et al.  UV-activated room-temperature gas sensing mechanism of polycrystalline ZnO , 2009 .

[5]  Dong Xiang,et al.  Metal Oxide Gas Sensors: Sensitivity and Influencing Factors , 2010, Sensors.

[6]  G. Lu,et al.  Ultrasensitive and low operating temperature NO2 gas sensor using nanosheets assembled hierarchical WO3 hollow microspheres , 2012 .

[7]  Changsheng Xie,et al.  A comparative study on UV light activated porous TiO2 and ZnO film sensors for gas sensing at room temperature , 2012 .

[8]  Malini Olivo,et al.  Reduced graphene oxide conjugated Cu2O nanowire mesocrystals for high-performance NO2 gas sensor. , 2012, Journal of the American Chemical Society.

[9]  Fengmin Liu,et al.  UV-enhanced room temperature NO2 sensor using ZnO nanorods modified with SnO2 nanoparticles , 2012 .

[10]  V. B. Patil,et al.  Synthesis of Fe2O3 nanoparticles for nitrogen dioxide gas sensing applications , 2013 .

[11]  Seong‐Hyeon Hong,et al.  H2 and C2H5OH sensing characteristics of mesoporous p-type CuO films prepared via a novel precursor-based ink solution route , 2013 .

[12]  Sunghoon Park,et al.  UV-enhanced NO2 gas sensing properties of SnO2-core/ZnO-shell nanowires at room temperature. , 2013, ACS applied materials & interfaces.

[13]  Hyoun Woo Kim,et al.  NO2 gas sensing properties of Au-functionalized porous ZnO nanosheets enhanced by UV irradiation , 2013 .

[14]  D. M. Leeuw,et al.  NO2 Detection and Real-Time Sensing with Field-Effect Transistors , 2014 .

[15]  M. G. Ghozikali,et al.  Effect of exposure to O3, NO2, and SO2 on chronic obstructive pulmonary disease hospitalizations in Tabriz, Iran , 2015, Environmental Science and Pollution Research.

[16]  Tetsuya Kida,et al.  Effect of water vapor on Pd-loaded SnO2 nanoparticles gas sensor. , 2015, ACS applied materials & interfaces.

[17]  Wei Chen,et al.  Three-dimensional mesoporous graphene aerogel-supported SnO2 nanocrystals for high-performance NO2 gas sensing at low temperature. , 2015, Analytical chemistry.

[18]  Wojtek Wlodarski,et al.  Physisorption-Based Charge Transfer in Two-Dimensional SnS2 for Selective and Reversible NO2 Gas Sensing. , 2015, ACS nano.

[19]  C. Zhang,et al.  Room temperature nitrogen dioxide sensors based on N719-dye sensitized amorphous zinc oxide sensors performed under visible-light illumination , 2015 .

[20]  B. K. Gupta,et al.  Facile Synthesis of ZnO–Reduced Graphene Oxide Nanocomposites for NO2 Gas Sensing Applications , 2015 .

[21]  A. Pandikumar,et al.  An electrochemical sensing platform based on a reduced graphene oxide–cobalt oxide nanocube@platinum nanocomposite for nitric oxide detection , 2015 .

[22]  Vinay Gupta,et al.  Room temperature detection of NO2 gas using optical sensor based on surface plasmon resonance technique , 2015 .

[23]  W. Cai,et al.  Monodispersed Nb2O5 Microspheres: Facile Synthesis, Air/Water Interfacial Self‐Assembly, Nb2O5‐Based Composite Films, and Their Selective NO2 Sensing , 2015 .

[24]  Zhihua Wang,et al.  In2O3–graphene nanocomposite based gas sensor for selective detection of NO2 at room temperature , 2015 .

[25]  J. Faist,et al.  Simultaneous measurement of NO and NO(2) by dual-wavelength quantum cascade laser spectroscopy. , 2015, Optics express.

[26]  Jin Hyeok Kim,et al.  Synthesis of fast response, highly sensitive and selective Ni:ZnO based NO2 sensor , 2016 .

[27]  S. Komarneni,et al.  Confined Formation of Ultrathin ZnO Nanorods/Reduced Graphene Oxide Mesoporous Nanocomposites for High-Performance Room-Temperature NO2 Sensors. , 2016, ACS applied materials & interfaces.

[28]  Yuxiang Qin,et al.  High sensitivity NO2 sensor based on CuO/p-porous silicon heterojunction at room temperature , 2016 .

[29]  Fan Yang,et al.  Silicon Based GeSn p-i-n Photodetector for SWIR Detection , 2016, IEEE Photonics Journal.

[30]  Taro Ueda,et al.  Enhanced NO2 gas sensing performance of bare and Pd-loaded SnO2 thick film sensors under UV-light irradiation at room temperature , 2016 .

[31]  H. Zeng,et al.  Surface Superoxide Complex Defects-Boosted Ultrasensitive ppb-Level NO2 Gas Sensors. , 2016, Small.

[32]  Jing Wang,et al.  UV activated hollow ZnO microspheres for selective ethanol sensors at low temperatures , 2016 .

[33]  Minghui Yang,et al.  Low Working-Temperature Acetone Vapor Sensor Based on Zinc Nitride and Oxide Hybrid Composites. , 2016, Small.

[34]  H. Liao,et al.  Light assisted room-temperature NO 2 sensors with enhanced performance based on black SnO 1-α@ ZnO 1-β@ SnO 2-γ nanocomposite coatings deposited by solution precursor plasma spray , 2017 .

[35]  Neeraj Goel,et al.  UV-Activated MoS2 Based Fast and Reversible NO2 Sensor at Room Temperature. , 2017, ACS sensors.

[36]  W. Cai,et al.  Capillary Gradient‐Induced Self‐Assembly of Periodic Au Spherical Nanoparticle Arrays on an Ultralarge Scale via a Bisolvent System at Air/Water Interface , 2017 .

[37]  F. Taghipour,et al.  Development of highly sensitive ZnO/In2O3 composite gas sensor activated by UV-LED , 2017 .

[38]  H. Haick,et al.  Light-Regulated Electrochemical Sensor Array for Efficiently Discriminating Hazardous Gases. , 2017, ACS sensors.

[39]  Jianmin Wu,et al.  2D Hybrid Nanomaterials for Selective Detection of NO2 and SO2 Using "Light On and Off" Strategy. , 2017, ACS applied materials & interfaces.

[40]  S. Ruan,et al.  Reduced graphene oxide/α-Fe2O3 hybrid nanocomposites for room temperature NO2 sensing , 2017 .

[41]  Zongshan Zhao,et al.  High Time-Resolution Optical Sensor for Monitoring Atmospheric Nitrogen Dioxide. , 2017, Analytical chemistry.

[42]  You Wang,et al.  Highly sensitive and rapidly responding room-temperature NO2 gas sensors based on WO3 nanorods/sulfonated graphene nanocomposites , 2018, Nano Research.

[43]  Tong Zhang,et al.  High-performance reduced graphene oxide-based room-temperature NO2 sensors: A combined surface modification of SnO2 nanoparticles and nitrogen doping approach , 2017 .

[44]  Yue Wang,et al.  Enhanced sensing response towards NO2 based on ordered mesoporous Zr-doped In2O3 with low operating temperature , 2017 .

[45]  Taro Ueda,et al.  Semiconductor-type SnO2-based NO2 sensors operated at room temperature under UV-light irradiation , 2017 .

[46]  E. Hertwich,et al.  Building Material Use and Associated Environmental Impacts in China 2000-2015. , 2018, Environmental science & technology.

[47]  Chen Zhao,et al.  Anchoring ultrafine Pd nanoparticles and SnO2 nanoparticles on reduced graphene oxide for high-performance room temperature NO2 sensing. , 2017, Journal of colloid and interface science.

[48]  Qinghui Jin,et al.  Light-regulated electrochemical reaction: Can it be able to improve the response behavior of amperometric gas sensors? , 2018, Sensors and Actuators B: Chemical.

[49]  Lidong Li,et al.  Application of 3D hierarchical monoclinic-type structural Sb-doped WO3 towards NO2 gas detection at low temperature. , 2018, Nanoscale.

[50]  Z. Hua,et al.  An investigation on NO 2 sensing mechanism and shielding behavior of WO 3 nanosheets , 2018 .

[51]  G. Lu,et al.  Rational design of 3D inverse opal heterogeneous composite microspheres as excellent visible-light-induced NO2 sensors at room temperature. , 2018, Nanoscale.

[52]  B. Cheng,et al.  Multilayer Graphene-GeSn Quantum Well Heterostructure SWIR Light Source. , 2018, Small.

[53]  Bo Liu,et al.  Preferentially epitaxial growth of β-FeOOH nanoflakes on SnO2 hollow spheres allows the synthesis of SnO2/α-Fe2O3 hetero-nanocomposites with enhanced gas sensing performance for dimethyl disulfide , 2018, Sensors and Actuators B: Chemical.

[54]  Bo Liu,et al.  Ultrafine Pt NPs-Decorated SnO2/α-Fe2O3 Hollow Nanospheres with Highly Enhanced Sensing Performances for Styrene. , 2018, Journal of hazardous materials.

[55]  Jianbo Sun,et al.  UV excitation NO2 gas sensor sensitized by ZnO quantum dots at room temperature , 2018 .

[56]  Yafei Zhang,et al.  Design of Hetero-Nanostructures on MoS2 Nanosheets To Boost NO2 Room-Temperature Sensing. , 2018, ACS applied materials & interfaces.

[57]  Yanhong Lin,et al.  Study on the gas-sensitive properties for formaldehyde based on SnO2-ZnO heterostructure in UV excitation , 2018 .

[58]  Xiaodong Hu,et al.  Ultrasensitive and Fully Reversible NO2 Gas Sensing Based on p-Type MoTe2 under Ultraviolet Illumination. , 2018, ACS sensors.

[59]  Shantang Liu,et al.  Density Gradient Strategy for Preparation of Broken In2O3 Microtubes with Remarkably Selective Detection of Triethylamine Vapor. , 2018, ACS applied materials & interfaces.