Functional Materials, 23, No.2 (2016), p.206-211.

http://dx.doi.org/10.15407/fm23.02.206

GaSb whiskers in sensor electronics

A.A.Druzhinin1,2, I.I.Maryamova1, O.P.Kutrakov1

1Department of Semiconductor Electronics, Lviv Polytechnic of National University, Ukraine
2International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw, Poland

Abstract: 

Piezoresistive properties of gallium antimonide whiskers grown from the vapour phase by chemical transport reaction were studied in the temperature range of -150÷+100°C. The possibility to create different piezoresistive mechanical sensors based on these microcrystals was shown. On the basis of n- and p-type GaSb whiskers the strain gauges were created with high sensitivity operating in the wide temperature range. Sensors of hydrostatic pressure up to 5000 bar based on the n-type GaSb whiskers with high sensitivity were developed, that allows to obtain the output signal to 700 mV (without amplification) at this pressure.

Keywords: 
Gallium antimonide, whisker, piezoresistance, sensor, stain gauge, hydrostatic pressure sensor.
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