Visible light activation of room temperature NO2 gas sensors based on ZnO, SnO2 and In2O3 sensitized with CdSe quantum dots

被引：50

作者：

Chizhov, A. S. ^{[1
]}

Rumyantseva, M. N. ^{[2
]}

Vasiliev, R. B. ^{[1
,2
]}

Filatova, D. G. ^{[2
]}

Drozdov, K. A. ^{[3
]}

Krylov, I. V. ^{[3
]}

Marchevsky, A. V. ^{[1
]}

Karakulina, O. M. ^{[4
]}

Abakumov, A. M. ^{[4
,5
]}

Gaskov, A. M. ^{[2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Mat Sci, Leninskie Gory 1-21, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Dept Chem, Leninskie Gory 1-3, Moscow 119991, Russia

[3] Moscow MV Lomonosov State Univ, Dept Phys, Leninskie Gory 1-2, Moscow 119991, Russia

[4] Univ Antwerp, Electon Microscopy Mat Res EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium

[5] Skolkovo Innovat Ctr, Skolkovo Inst Sci & Technol Skoltech, Moscow 143026, Russia

来源：

THIN SOLID FILMS | 2016年 / 618卷

基金：

俄罗斯基础研究基金会;

关键词：

Room temperature; Semiconductor sensor; Gas sensor; Tin dioxide; Zinc oxide; Indium oxide; Cadmium selenide; Quantum dots; Visible light activation; Nitrogen dioxide; NANOCRYSTALLINE SNO2; SENSING PROPERTIES; OXIDE; PHOTOCONDUCTIVITY; CONDUCTIVITY; MECHANISM; RESPONSES; CERAMICS; ZINC; CO;

D O I：

10.1016/j.tsf.2016.09.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work reports the analysis of visible light activation of room temperature NO2 gas sensitivity of metal oxide semiconductors (MOS): blank and CdSe quantum dots (QDs) sensitized nanocrystalline matrixes ZnO, SnO2 and In2O3. Nanocrystalline metal oxides (MOx) ZnO, SnO2, In2O3 were synthesized by the precipitation method. Colloidal CdSe QDs were obtained by high temperature colloidal synthesis. Sensitization was effectuated by direct adsorption of CdSe QDs stabilized with oleic add on MOx surface. The role of illumination consists in generation of electrons, which can be transferred into MOx conduction band, and holes that can recombine with the electrons previously trapped by the chemisorbed acceptor species and thus activate desorption of analyte molecules. Under green light illumination for blank SnO2 and In2O3 matrixes the indirect consequential mechanism for the generation of holes is proposed. Another mechanism is realized in the presence of CdSe QDs. In this case the electron-hole pair is generated in the CdSe quantum dot. Sensor measurements demonstrated that synthesized materials can be used for NO2 detection under visible (green) light illumination at room temperature without any thermal heating. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：253 / 262

页数：10

共 48 条

[1]

Adachi S, 2005, WILEY SER MATER ELEC, P1, DOI 10.1002/0470090340

[2]

AKIMOV IA, 1980, SENSIBILIZED PHOTOEF

[3] Adsorption of O2, H2, CO, NH3, and NO2 on ZnO nanotube:: A density functional theory study [J].

An, Wei ;

Wu, Xiaojun ;

Zeng, X. C. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (15) :5747-5755

[4] 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

[5] UV-assisted alcohol sensing using SnO2 functionalized GaN nanowire devices [J].

Bajpai, Ritu ;

Motayed, Abhishek ;

Davydov, Albert V. ;

Oleshko, Vladimir P. ;

Aluri, Geetha S. ;

Bertness, Kris A. ;

Rao, Mulpuri V. ;

Zaghloul, Mona E. .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 171 :499-507

[6] Adsorption of NO and NO2 on the ZnO(2 (1)over-bar (1)over-bar 0) surface: A DFT study [J].

Breedon, M. ;

Spencer, M. J. S. ;

Yarovsky, I. .

SURFACE SCIENCE, 2009, 603 (24) :3389-3399

[7] 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

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

Comini, E ;

Ottini, L ;

Faglia, G ;

Sberveglieri, G .

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

[9] Highly sensitive room temperature sensors based on the UV-LED activation of zinc oxide nanoparticles [J].

Costello, B. P. J. de lacy ;

Ewen, R. J. ;

Ratcliffe, N. M. ;

Richards, M. .

SENSORS AND ACTUATORS B-CHEMICAL, 2008, 134 (02) :945-952

[10] A model for the response towards oxidizing gases of photoactivated sensors based on individual SnO2 nanowires [J].

Daniel Prades, Joan ;

Jimenez-Diaz, Roman ;

Manzanares, Marta ;

Hernandez-Ramirez, Francisco ;

Cirera, Albert ;

Romano-Rodriguez, Albert ;

Mathur, Sanjay ;

Ramon Morante, Joan .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2009, 11 (46) :10881-10889

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