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Title | Temperature dependence of 1/f noise in Gallium Nitride epitaxial layer |
Authors |
Kumar, Ashutosh
Kumar, Ashish Asokan, K. Kumar, V. Singh, R. |
ORCID | |
Keywords |
спектральная плотность мощности спектральна щільність потужності spectral power density |
Type | Article |
Date of Issue | 2011 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/22017 |
Publisher | Видавництво СумДУ |
License | Copyright not evaluated |
Citation | Temperature dependence of 1/f noise in Gallium Nitride epitaxial layer [Текст] / A. Kumar, A. Kumar, K. Asokan et al. // Journal of Nano- and Electronic Physics. — 2011. — Vol.3, № 1, Part IV : Proceedings of the International Symposium on Semiconductor Materials and Devices (ISSMD-2011), Vadodara, India, 28-30 January 2011. — P. 676-679. |
Abstract |
1/f noise investigation was performed on n-GaN epitaxial layer grown on sapphire. The variation of spectral power density of voltage fluctuations density was observed as a function of frequency (100-50 Hz) and it showed the 1/f spectra. This type of
behavior was attributed to the presence of traps. The variation in spectral power density of voltage fluctuations with temperature was also observed with in the temperature range 80 K and 300 K and it was found to be slightly increasing with
temperature. It was attributed to the trapping-detrapping process of charge carriers by the defects. Four probe configuration was used for noise measurement and contacts
were made with indium. To check the stability and ohmic behavior of contacts, I-V measurements were performed with in the temperature range 80-325 K.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/22017 |
Appears in Collections: |
Журнал нано- та електронної фізики (Journal of nano- and electronic physics) |
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