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Investigation of Thermoelectric Power of Ga 2 Se 3 Monocrystals
Author(s) -
Gamal G. A.,
Elshaikh H. A.
Publication year - 1995
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170300626
Subject(s) - seebeck coefficient , charge carrier , thermoelectric effect , diffusion , materials science , relaxation (psychology) , electrical resistivity and conductivity , atmospheric temperature range , thermoelectric materials , range (aeronautics) , conductivity , charge (physics) , condensed matter physics , analytical chemistry (journal) , optoelectronics , thermodynamics , chemistry , electrical engineering , physics , composite material , psychology , social psychology , chromatography , engineering , quantum mechanics
Single crystals of Ga 2 Se 3 were prepared by a technique based on the Bridgman method. Thermoelectric power was investigated in the temperature range 160–525 K. From this investigation many physical parameters such as effective masses of charge carriers, carrier mobilities, diffusion length, diffusion coefficient, and the relaxation time for both majority and minority carriers were estimated. In conjunction with the electrical conductivity and the charge carrier concentration, the thermoelectric power is discussed.