PLD-prepared cadmium sensors based on chalcogenide glasses-ISFET, LAPS and μISE semiconductor structures

J. P. Kloock, L. Moreno, A. Bratov, S. Huachupoma, J. Xu, T. Wagner, T. Yoshinobu, Y. Ermolenko, Y. G. Vlasov, M. J. Schöning

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

In this work, ion-selective field-effect transistors (ISFET), light-addressable potentiometric sensors (LAPS) and miniaturised ion-selective electrodes (μISE) are investigated for the detection of cadmium ions in aqueous solutions for future multi-sensor applications. The sensor membranes are based on a chalcogenide glass material (CdSAgIAs2S3) that has been deposited as thin film onto different transducer structures by means of the pulsed laser deposition (PLD) technique. The prepared thin films were physically characterised by means of optical microscopy, Rutherford backscattering spectrometry (RBS) and scanning electron microscopy (SEM). The electrochemical characterisation was done by means of ion-selective potentiometry (μISE), current/voltage, constant current (LAPS) and constant-charge mode (ISFET) measurements.

Original languageEnglish
Pages (from-to)149-155
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume118
Issue number1-2
DOIs
Publication statusPublished - 2006 Oct 25

Keywords

  • Chalcogenide glasses
  • Heavy metal detection
  • ISFET
  • LAPS
  • Pulsed laser deposition
  • μISE

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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