Electrical, optical and sensing properties of photo-activated ZnO thin films

被引：7
作者：
Fabbri, B. [1 ,3 ]
Gaiardo, A. [1 ]
Giberti, A. [1 ,2 ]
Guidi, V. [1 ,2 ,3 ]
Malagu, C. [1 ,3 ]
Martucci, A. [4 ]
Sturaro, M. [4 ]
机构：
[1] Univ Ferrara, Dept Phys & Earth Sci, Via Saragat 1-C, I-44122 Ferrara, Italy
[2] MIST ER Scrl, I-40129 Bologna, Italy
[3] CNR, INO, I-50124 Florence, Italy
[4] Univ Padua, Dept Ind Engn, I-35131 Padua, Italy
来源：
28TH EUROPEAN CONFERENCE ON SOLID-STATE TRANSDUCERS (EUROSENSORS 2014) | 2014年 / 87卷
关键词：
Zinc oxide; room temperature gas sensing; photo enhanced gas sensing; nitrogen dioxide; ROOM-TEMPERATURE; OZONE DETECTION; OXIDE;
D O I：
10.1016/j.proeng.2014.11.605
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Zinc oxide is a wide gap semiconductor whose chemical activity at surface can be enhanced by proper electromagnetic radiation. This property opens the door to room temperature gas sensing with this material. In this work, nanosized ZnO powder was synthesized by sol-gel technique. Then, structural and morphological characterizations were carried out by means of X -Ray Diffraction and SEM techniques. Thin films were deposited by spin coating technique on both glass and alumina substrates, to perform optical absorption spectra and electrical conductance measurements, respectively. The electro-optical properties were studied on the photo-activated films, in air and in nitrogen conditions, to investigate first on the basic surface-oxygen interaction in photo-activated condition. Then, gas measurements were also performed in air and in nitrogen, to acquire information on the photo -enhanced surface chemistry, in order to be applied to gas sensing. 2014 The Authors. Published by Eslevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). Peer-review under responsibility of the scientific committee of Eurosensors 2014
引用
收藏
页码：148 / 151
页数：4
相关论文
共 50 条
[31]   Optical and electrical studies on spray deposited ZnO thin films [J].
Sahay, P. P. ;
Tewari, S. ;
Nath, R. K. .
CRYSTAL RESEARCH AND TECHNOLOGY, 2007, 42 (07) :723-729
[32]   Influence of hydrogen on electrical and optical properties of ZnO films [J].
Kim, Y. H. ;
Karazhanov, S. Zh. ;
Kim, W. M. .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2011, 248 (07) :1702-1707
[33]   Electrical and gas sensing investigations on the sprayed ZnO:Cu thin films [J].
Mhamdi, A. ;
Alkhalifah, Menea S. ;
Rajeh, S. ;
Labidi, A. ;
Amlouk, M. ;
Belgacem, S. .
PHYSICA B-CONDENSED MATTER, 2017, 521 :178-187
[34]   Structural and optical properties of electrodeposited ZnO thin films [J].
Laurent, K. ;
Wang, B. Q. ;
Yu, D. P. ;
Leprince-Wang, Y. .
THIN SOLID FILMS, 2008, 517 (02) :617-621
[35]   Optical properties of the CuO-ZnO thin films [J].
Ignatieva, I. O. ;
Starnikova, A. P. ;
Petrov, V. V. ;
Bayan, E. M. .
ST PETERSBURG POLYTECHNIC UNIVERSITY JOURNAL-PHYSICS AND MATHEMATICS, 2024, 17 (03) :293-296
[36]   Influence of Si concentration on electrical and optical properties of room temperature ZnO:Si thin films [J].
Clatot, J. ;
Nistor, M. ;
Rougier, A. .
THIN SOLID FILMS, 2013, 531 :197-202
[37]   Electrical and Optical Properties of In-doped ZnO Thin Films via Ultrasonic Spray Pyrolysis [J].
Biswal, R. R. ;
Maldonado, A. ;
Olvera, M. de la L. .
2013 10TH INTERNATIONAL CONFERENCE ON ELECTRICAL ENGINEERING, COMPUTING SCIENCE AND AUTOMATIC CONTROL (CCE), 2013, :407-410
[38]   Effect Of Eu Doping On The Structural, Optical And Electrical Properties Of ZnO Thin Films Deposited By PLD [J].
Jejurikar, S. M. ;
Shinde, S. D. ;
Sathe, V. G. ;
Adhi, K. P. .
OPTICS: PHENOMENA, MATERIALS, DEVICES, AND CHARACTERIZATION: OPTICS 2011: INTERNATIONAL CONFERENCE ON LIGHT, 2011, 1391
[39]   Optical and electrical properties of Bi doped ZnO thin films deposited by ultrasonic spray pyrolysis [J].
Chouikh, F. ;
Beggah, Y. ;
Aida, M. S. .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2011, 22 (05) :499-505
[40]   Electrical and optical properties of fluorine-doped ZnO thin films prepared by spray pyrolysis [J].
Sanchez-Juarez, A ;
Tiburcio-Silver, A ;
Ortiz, A ;
Zironi, EP ;
Rickards, J .
THIN SOLID FILMS, 1998, 333 (1-2) :196-202
12345