Fast-response thermistors made of synthetic single-crystal diamonds

Miniature thermistors are produced from boron-doped synthetic single-crystal diamonds grown under pressure using the thermal gradient method. It is shown that heavily doped diamonds with a boron concentration of 10 19 cm −3 or higher are most suitable for this purpose. In the temperature range of 30...

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Bibliographic Details
Published in:Instruments and experimental techniques (New York) 2009-09, Vol.52 (5), p.738-742
Main Authors: Bormashov, V. S., Buga, S. G., Blank, V. D., Kuznetsov, M. S., Nosukhin, S. A., Terent’ev, S. A., Pel’, E. G.
Format: Article
Language:English
Subjects:
Electrical Engineering
Laboratory Techniques
Measurement Science and Instrumentation
Physical Chemistry
Physics
Physics and Astronomy
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Summary:Miniature thermistors are produced from boron-doped synthetic single-crystal diamonds grown under pressure using the thermal gradient method. It is shown that heavily doped diamonds with a boron concentration of 10 19 cm −3 or higher are most suitable for this purpose. In the temperature range of 300–700 K, coefficient β = ln( R 1 / R 2 )/(1/ T 1 − 1/ T 2 ) is 2500 K. The characteristic response time of temperature-sensitive elements based on crystals with dimensions of 1 × 1 × 0.3 mm is ∼100 µs; i.e., they can be used in monitoring systems with a response speed of up to 10 kHz.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441209050182