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pH-sensitive proper...
pH-sensitive properties of barium strontium titanate (BST) thin films prepared by pulsed laser deposition technique
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Buniatyan, V. V. (författare)
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- Abouzar, M. H. (författare)
- Forschungszentrum Jülich GmbH
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Martirosyan, N. W. (författare)
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- Schubert, J. (författare)
- Forschungszentrum Jülich GmbH
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- Gevorgian, Spartak, 1948 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Schoning, M. J. (författare)
- Forschungszentrum Jülich GmbH
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- Poghossian, A. (författare)
- Forschungszentrum Jülich GmbH
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(creator_code:org_t)
- 2010-03-18
- 2010
- Engelska.
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Ingår i: Physica Status Solidi (A) Applications and Materials Science. - : Wiley. - 1862-6319 .- 1862-6300. ; 207:4, s. 824-830
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- pH sensitive properties of barium strontium titianate (BST) high k thin films as alternative gate material for field-effect capacitive (bio-) chemical sensors based on an electrolyte-insulator semiconductor system have been investigated. The BST films of different composition (Ba0.3Sr0.69TiO3, Ba0.25Sr0.75TiO3 and MG doped Ba0.8Sr0.2Mg0.1Ti0.9O3 were deposited by pulsed laser deposition technique from targets farbicated by self-propagating high-temperatures synthesis. The realised sensors have been electrochemically characterised by means of impedance-spectroscopy, capacitance-voltage and constant-capacitance method. The sensors possess a Nernstian-like pH sensitivity in the concentration range between pH 3 and 11 with a response time of 5-10 s. An equivalent circuit model for the BST-based capacitive field-effect sensor is discussed.(C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- CHEMICAL SENSORS
- TUNABLE
- field effect sensor
- FIELD-EFFECT TRANSISTORS
- OXIDES
- FABRICATION
- DEVICES
- IDENTICAL TRANSDUCER PRINCIPLE
- PLD
- MEMBRANE
- APPLICATIONS
- SENSING PROPERTIES
- biosensor
- barium strontium titanate
- ISFET
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- ref (ämneskategori)
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