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Room Temperature UV-Enhanced NO2-Gas Sensing of Doped and Undoped Sol-Gel-Synthesized ZnO

Title data

Wagner, Ricarda ; Vogel, Leah ; Schneider, S. ; Schönauer-Kamin, Daniela ; Moos, Ralf:
Room Temperature UV-Enhanced NO2-Gas Sensing of Doped and Undoped Sol-Gel-Synthesized ZnO.
In: 17th International Meeting on Chemical Sensors - IMCS 2018. - Wien , 2018 . - pp. 521-522
ISBN 978-3-9816876-9-9
DOI: https://doi.org/10.5162/IMCS2018/P1GS.1

Official URL: Volltext

Abstract in another language

ZnO is of interest for many applications, e.g. also for gas sensing. Here, sol-gel synthesized, nanosized ZnO is investigated with regard to its room temperature NO2 sensing behavior. It is shown that both doping and UV exposure shorten the response and the recovery times of the sensors. NO2 measurements were carried out with undoped, Sn-doped, and Al-doped ZnO sensors, respectively. The Al-doped samples provide the highest NO2-response. Furthermore, the effect of dry or humid atmosphere on the sensor response was investigated. The strong humidity influence on the sensor signal almost disappears with UV exposure. Hence, UV-light, nano-sized structure, and proper doping may be the key for room temperature NO2 sensing.

Further data

Item Type: Article in a book
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 23 Jul 2018 08:21
Last Modified: 23 Jul 2018 08:21
URI: https://eref.uni-bayreuth.de/id/eprint/45156