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Journal De Physique. IV : JPVolume 125, 2005, Pages 427-42913th ICPPP International Conference on Photoacoustic and PhotothermalPhenomena; Rio de Janeiro; Brazil; 5 July 2004 through 8 July 2004; Code 66918

Anisotropy in thermal and electronic properties of single crystal GaSe determined by the photoacoustic method(Conference Paper)

  • Nikolic, P.M.,
  • Vasiljevic-Radovic, D.,
  • Radulovic, K.T.,
  • Bojicic, A.I.,
  • Lukovic, D.,
  • Savic, S.,
  • Blagojevic, V.,
  • Vujatovic, S.,
  • Lukic, L.,
  • Urosevic, D.
  • View Correspondence (jump link)
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  • aInstitute of Technical Sciences, Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11000 Belgrade, Serbia
  • bIHTM, Institute of Microelectronic Technologies and Single Crystals, Njegoševa 12, 11000 Belgrade, Serbia
  • cFaculty of Electrical Engineering, Belgrade University, Kralja Aleksandra 73, 11000 Belgrade, Serbia
  • dIRITEL, Batajnički put 23, 11000 Belgrade, Serbia
  • eMathematical Institute, Serbian Academy of Sciences and Arts, Knez Mihailova 35/II, 11000 Belgrade, Serbia

Abstract

Anisotropy in thermal and electronic properties for two directions of thermal wave propagation in the GaSe single crystal was investigated using photoacoustic (PA) frequency transmission techniques. First, the electric field of an incident polarized light beam was adjusted to be perpendicular to the c-axis (E→ ⊥c) and then parallel to it (E→ ∥ c). An obvious difference in the PA phase and amplitude spectra of the same sample for these two cases was shown. The thermal diffusivity D T obtained by the fitting procedure for these two orientations of the electric field were calculated as D T∥ =0.46×10 -5 m 2 /s and D T⊥ =0.62×10 -6 m 2 /s eg. Their ratio is about 7.4. The electronic transport parameters are also given. The carrier diffusion coefficient D∥ is 0.53×10 -3 m 2 /s and D⊥ is 0.3×10 -3 m 2 /s. © EDP Sciences.

Indexed keywords

Engineering controlled terms:Electric propertiesPhotoacoustic effectSemiconducting gallium compoundsSingle crystalsThermodynamic propertiesWave propagation
Engineering uncontrolled termsAmplitude spectraPhotoacoustic (PA) frequency transmission techniquesPhotoacoustic methodThermal wave propagation
Engineering main heading:Anisotropy
  • ISSN: 11554339
  • CODEN: JPICE
  • Source Type: Conference Proceeding
  • Original language: English
  • DOI: 10.1051/jp4:2005125100
  • Document Type: Conference Paper
  • Sponsors: et al.,National Institute for Space Research,State of Rio de Janeiro Research Foundation,State of Sao Paulo Research Foundation,State University of Campinas,State University of the North of Rio de Janeiro, Brazil
  • Publisher: EDP Sciences

  Nikolic, P.M.; Institute of Technical Sciences, Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, Serbia
© Copyright 2019 Elsevier B.V., All rights reserved.

Cited by 2 documents

Ghalouci, L. , Benbahi, B. , Hiadsi, S.
First principle investigation into hexagonal and cubic structures of Gallium Selenide
(2013) Computational Materials Science
Isik, M. , Bulur, E. , Gasanly, N.M.
Low-temperature thermoluminescence in TlGaS2 layered single crystals
(2013) Journal of Luminescence
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