This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1002/pssa.200983306 in citations.
Development of an electrolyte-insulator-semiconductor (EIS) based capacitive heavy metal sensor for the detection of Pb2+ and Cd2+ ions
Development of an electrolyte-insulator-semiconductor (EIS) based capacitive heavy metal sensor for the detection of Pb2+ and Cd2+ ions
Chalcogenide glass materials as membranes for potentiometric sensors for chemical analysis in solutions have been studied since more than 20 years. In this work, an electrolyte insulator semiconductor structure was combined with chalcogenide glass membranes prepared by means of the pulsed laser depo...
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Personal Name(s): | Spelthahn, H. |
---|---|
Schaffrath, S. / Coppe, T. / Rufi, F. / Schöning, M. J. | |
Contributing Institute: |
Institut für Bio- und Nanosysteme - Bioelektronik; IBN-2 JARA-FIT; JARA-FIT |
Published in: | Physica status solidi / A, 207 (2010) S. 930 - 934 |
Imprint: |
Weinheim
Wiley-VCH
2010
|
Physical Description: |
930 - 934 |
DOI: |
10.1002/pssa.200983306 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physica Status Solidi A
207 |
Subject (ZB): | |
Publikationsportal JuSER |
Chalcogenide glass materials as membranes for potentiometric sensors for chemical analysis in solutions have been studied since more than 20 years. In this work, an electrolyte insulator semiconductor structure was combined with chalcogenide glass membranes prepared by means of the pulsed laser deposition technique. Depending on the membrane composition a selectivity to different ions (Cd2+ and Pb2+) is achieved. The different sensor membranes have been physically characterised using microscopy, ellipsometry, profilometry, atomic force a microscopy (AFM), scanning electron microscopy (SEM) and Rutherford backscattering spectrometry (RBS). The electrochemical behaviour has been investigated via capacitance/voltage (C/V) and constant capacitance (ConCap) measurements and results in a Cd2+ sensitivity of 23.1 +/- 0.6 mV per decade in a linear range from 7 x 10(-6) to 10(-2) mol/l and 24.4 +/- 0.5 mV per decade in a linear range from 5 x 10(-6) to 10(-2) mol/l for Pb2+, respectively. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |