This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1002/pssa.201431911 in citations.
Multi-parameter sensing using high-k oxide of barium strontium titanate
Multi-parameter sensing using high-k oxide of barium strontium titanate
High-k perovskite oxide of barium strontium titanate (BST) represents a very attractive multi-functional transducer material for the development of (bio-)chemical sensors. In this work, a Si-based sensor chip containing Pt interdigitated electrodes covered with a thin BST layer (485 nm) has been dev...
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Personal Name(s): | Huck, Christina |
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Poghossian, Arshak (Corresponding author) / Bäcker, Matthias / Reisert, Steffen / Kramer, Friederike / Begoyan, Vardges K. / Buniatyan, Vahe V. / Schöning, Michael J. (Corresponding author) | |
Contributing Institute: |
Bioelektronik; PGI-8 |
Published in: | Physica status solidi / A, 212 (2015) 6, S. 1254 - 1259 |
Imprint: |
2015
|
DOI: |
10.1002/pssa.201431911 |
Document Type: |
Journal Article |
Research Program: |
Controlling Configuration-Based Phenomena |
Publikationsportal JuSER |
High-k perovskite oxide of barium strontium titanate (BST) represents a very attractive multi-functional transducer material for the development of (bio-)chemical sensors. In this work, a Si-based sensor chip containing Pt interdigitated electrodes covered with a thin BST layer (485 nm) has been developed for multi-parameter chemical sensing. The chip has been applied for the contactless measurement of the electrolyte conductivity, the detection of adsorbed charged macromolecules (positively charged polyelectrolytes of polyethylenimine) and the concentration of hydrogen peroxide (H2O2) vapor. The experimental results of functional testing of individual sensors are presented. The mechanism of the BST sensitivity to charged polyelectrolytes and H2O2 vapor has been proposed and discussed. |