Inorganic Thin-film Sensor Membranes with PLD-prepared Chalcogenide Glasses: Challenges and Implementation

Chalcogenide glasses offer an excellent “challenge” for their use and implementation in sensor arrays due to their good sensor-specific advantages in comparison to their crystalline counterparts. This paper will give an introduction on the preparation of chalcogenide glasses in the thin-film state....

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2004-10, Vol.4 (10), p.156-162
Main Authors: Kloock, Joachim P., Mourzina, Youlia G., Ermolenko, Yuri, Doll, Theodor, Schuberth, Jürgen, Schöning, Michael J.
Format: Article
Language:English
Subjects:
Arrays
chalcogenide glass material
heavy metal detection
Heavy metals
Lasers
microfabrication technique
Oxidation
potentiometry
pulsed laser deposition
Scanning electron microscopy
Scientific imaging
Semiconductors
Sensors
Silicon wafers
Thin films
thin-film sensor array
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Summary:Chalcogenide glasses offer an excellent “challenge” for their use and implementation in sensor arrays due to their good sensor-specific advantages in comparison to their crystalline counterparts. This paper will give an introduction on the preparation of chalcogenide glasses in the thin-film state. First, single microsensors have been prepared with the methods of semiconductor technology. In a next step, three microsensors are implemented onto one single silicon substrate to an “one chip” sensor array. Different ionselective chalcogenide glass membranes (PbSAgIAs2S3, CdSAgIAs2S3, CuAgAsSeTe and TlAgAsIS) were prepared by means of the pulsed laser deposition (PLD) process. The different sensor membranes and structures have been physically characterized by means of Rutherford backscattering spectrometry, scanning electron microscopy and video microscopy. The electrochemical behavior has been investigated by potentiometric measurements.
ISSN:1424-8220
1424-8220
DOI:10.3390/s41000156