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Vol. 117, Issue 6, June 2010, pp.106-111




Influence of Temperature on Current-Voltage Characteristics and Noise of Hydrogen Sensors



Department of Physics of Semiconductors and Microelectronics, Yerevan State University,

1, Alex Manoukian, 0025, Yerevan, Armenia

E-mail: 1zaramkhitaryan@ysu.am2kisahar@ysu.am, 3armendurgaryan@gmail.com



Received: 18 April 2010   /Accepted: 21 June 2010   /Published: 25 June 2010


Abstract: In this work, experimental results for temperature dependences of current-voltage and noise characteristics (CVC) in structures with porous silicon layer in dry air and under hydrogen adsorption conditions are presented. Approximation of the received results is carried out. Sample measurement temperature ranges from 20 0С to 90 0С. It is shown that when temperature increases, even within small limits, influence of hydrogen adsorption grows significantly which results in more tangible CVC and noise spectra changes. The received results are discussed.


Keywords: Low frequency noise, Hydrogen sensor, Porous silicon


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