DocumentCode
2229219
Title
Determination of thermal parameters of semiconductors by photoacoustic phase angle technique
Author
Negm, S. ; Talaat, Hossam
Author_Institution
Fac. of Eng., Zagazig Univ.
fYear
1993
fDate
31 Oct-3 Nov 1993
Firstpage
819
Abstract
Photoacoustic (PA) technique in the gas microphone configuration has been employed to determine the thermal properties of GaAs samples using the phase angle measurements in the saturation region. The doped samples are either n-type (6.9×1017-5.6×1018 ) or p-type (2.08×1017-2.1×1020). The values of the thermal diffusivity (α) are found to change with the dopant concentration and type
Keywords
III-V semiconductors; gallium arsenide; photoacoustic effect; thermal diffusivity; thermal variables measurement; GaAs; dopant concentration; gas microphone configuration; n-type; p-type; photoacoustic phase angle measurement; saturation; semiconductors; thermal diffusivity; thermal parameters; Absorption; Gallium arsenide; Goniometers; Microphones; Phase measurement; Semiconductor materials; Solids; Spectroscopy; Temperature; Thermal conductivity;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1993. Proceedings., IEEE 1993
Conference_Location
Baltimore, MD
Print_ISBN
0-7803-2012-3
Type
conf
DOI
10.1109/ULTSYM.1993.339497
Filename
339497
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