Ammonia sensing properties of V-doped ZnO:Ca nanopowders prepared by sol-gel synthesis

被引：19

作者：

Fazio, E. ^{[1
]}

Hjiri, M. ^{[2
,3
]}

Dhahri, R. ^{[2
,3
]}

El Mir, L. ^{[2
,4
]}

Sabatino, G. ^{[1
]}

Barreca, F. ^{[1
]}

Neri, F. ^{[1
]}

Leonardi, S. G. ^{[3
]}

Pistone, A. ^{[3
]}

Neri, G. ^{[3
]}

机构：

[1] Univ Messina, Dipartimento Fis & Sci Terra, I-98166 Messina, Italy

[2] Fac Sci Gabes, Lab Phys Mat & Nanomat Appl Environm, Gabes 6072, Tunisia

[3] Univ Messina, Dipartimento Ingn Elettron Chim & Ingn Ind, I-98166 Messina, Italy

[4] Al Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Phys, Riyadh 11623, Saudi Arabia

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2015年 / 226卷

关键词：

Sol-gel; V-doped ZnO:Ca; NH3; sensor; RAY PHOTOELECTRON-SPECTROSCOPY; THIN-FILM; OPTICAL-PROPERTIES; LASER-ABLATION; OXIDE; SENSORS; RAMAN; AL; CO; MECHANISM;

D O I：

10.1016/j.jssc.2015.02.021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

V-doped ZnO:Ca nanopowders with different V loading were prepared by sol-gel synthesis and successive drying in ethanol under supercritical conditions. Characterization data of nanopowders annealed at 700 degrees C in air, revealed that they have the wurtzite structure. Raman features of V-doped ZnO:Ca samples were found to be substantially modified with respect to pure ZnO or binary ZnO:Ca samples, which indicate the substitution of vanadium ions in the ZnO lattice. The ammonia sensing properties of V-doped ZnO:Ca thick films were also investigated. The results obtained demonstrate the possibility of a fine tuning of the sensing characteristics of ZnO-based sensors by Ca and V doping. In particular, their combined effect has brought to an enhanced response towards NH3 compared to bare ZnO and binary V-ZnO and Ca-ZnO samples. Raman investigation suggested that the presence of Ca play a key role in enhancing the sensor response in these ternary composite nanomaterials. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：192 / 200

页数：9

共 50 条

[41] Low temperature synthesis and luminescence properties of YAG:Eu nanopowders prepared by modified sol-gel method
Hassanzadeh-Tabrizi, S. A.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2011, 21 (11) : 2443 - 2447
[42] Structure and magnetic properties of Co-doped ZnO powder prepared by sol-gel method
Li, BB
Xiu, XQ
Zhang, R
Xie, ZL
Chen, Y
Shi, Y
Han, P
Zheng, YD
SMIC-XIII: 2004 13th International Conference on Semiconducting & Insulating Materials, 2004, : 202 - 205
[43] Synthesis and optical properties of nanocrystalline V-doped ZnO powders
Maensiri, Santi
Masingboon, Chivalrat
Promarak, Vinich
Seraphin, Supapan
OPTICAL MATERIALS, 2007, 29 (12) : 1700 - 1705
[44] SYNTHESIS OF Al DOPED ZnO FILMS BY SOL-GEL TECHNIQUE
Bhattacharyya, S. R.
Majumder, S.
FUNCTIONAL MATERIALS LETTERS, 2010, 3 (02) : 111 - 114
[45] Sol-gel synthesis and optical properties of ZnO powder
Matei, A.
Dumitrescu, L.
Cernica, I.
Schiopu, V.
Dinescu, A.
Danila, M.
Mihalache, I.
Manciulea, I.
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2013, 15 (7-8): : 703 - 706
[46] SOL-GEL SYNTHESIS AND CHARACTERIZATIONS OF In-DOPED ZnO NANOPARTICLES
El Ghoul, J.
El Mir, L.
JOURNAL OF OPTOELECTRONIC AND BIOMEDICAL MATERIALS, 2019, 11 (04): : 61 - 67
[47] Synthesis and characterization of ZnO nanoparticles as prepared by gel-combustion and ZnO nanomorphologies by sol-gel
Bianchetti, Mario F.
Maček-Krzmanc, Marjeta
Bracko, Ines
Skapin, Sreco D.
de Reca, Noemi E. Walsöe
Sensors and Transducers, 2012, 146 (11): : 36 - 47
[48] Sol-gel synthesis of Pd doped ZnO nanorods for room temperature hydrogen sensing applications
Kashif, M.
Ali, M. E.
Ali, Syed M. Usman
Hashim, U.
CERAMICS INTERNATIONAL, 2013, 39 (06) : 6461 - 6466
[49] Sol-Gel Synthesis of Dy Co-Doped ZnO:V Nanoparticles for Optoelectronic Applications
Al-Harbi, Fatemah F.
El Ghoul, Jaber Mohamed
CONDENSED MATTER, 2021, 6 (03):
[50] Structure properties of silica gel doped with CdS prepared by sol-gel technique
Battisha, IK
PHYSICS OF LOW-DIMENSIONAL STRUCTURES, 2001, 7-8 : 9 - 19

← 1 2 3 4 5 →