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Aerosol Deposition (AD) of doped and undoped SnO2 films – Investigation of film formation and film properties

Title data

Hanft, Dominik ; Bektas, Murat ; Schubert, Michael ; Exner, Jörg ; Moos, Ralf:
Aerosol Deposition (AD) of doped and undoped SnO2 films – Investigation of film formation and film properties.
2015
Event: PACRIM 11, The 11th Pacific Rim Conference of Ceramic Societies , 30.08.-04.09.2015 , Jeju, Korea.
(Conference item: Conference , Poster )

Abstract in another language

In this contribution, we describe a new and fast way of processing the semiconductor SnO2 as µm-thin films by aerosol deposition [1] and show the suitability of this processing technique with regard to the sensing properties of the films.

SnO2 is a widely studied material with applications as transparent conductive oxide, oxidation catalyst, and gas sensor [2]. Due to its high sensitivity for reducing gases, it is commercially applied for gas sensing, typically in the form of porous ceramic samples, or as thick or thin films.
The good potential of aerosol deposition for the processing of dense wide-area films and coatings has been shown for many different materials amongst others for gas sensing [3]. A relatively simple setup, the high deposition rate (up to several µm/min) as well as the nanostructured film morphology makes this process suitable for a variety of applications. Nevertheless, the aerosol deposition of SnO2 films is a new field.

For commercial undoped SnO2 powders, we optimized the deposition behavior and the quality of the films and developed sensors on basis of interdigital electrodes (IDE). For H2, CO, NO2, air and humidity the response of these sensors has been investigated from 100 450°C, showing good response for each component. The high response to NO2 is eye-catching, even for concentrations below 5 ppm.

Further data

Item Type: Conference item (Poster)
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
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Research Institutions
Research Institutions > Research Centres
Profile Fields > Advanced Fields > Advanced Materials
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 21 Sep 2015 13:47
Last Modified: 18 Apr 2016 07:30
URI: https://eref.uni-bayreuth.de/id/eprint/19476