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Optical and Electrical Spectroscopy of Zinc Oxide Crystals Simultaneously Doped with Copper and Donors
Author(s) -
Muller G.
Publication year - 1976
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220760210
Subject(s) - doping , zinc , copper , materials science , acceptor , electrical resistivity and conductivity , conductivity , spectroscopy , analytical chemistry (journal) , absorption (acoustics) , fermi level , conduction band , condensed matter physics , optoelectronics , chemistry , metallurgy , physics , quantum mechanics , electron , chromatography , composite material
Abstract In Cu‐doped ZnO crystals the Fermi level is varied by additional donor doping (In or H) in the energy range 0 to 250 meV below the bottom of the conduction band. The results of optical absorption and electrical conductivity measurements carried out in these crystals can be explained by using the model in which Cu acts as an acceptor with an energy spacing of E CA = 190 meV from the bottom of the conduction band. Moreover oscillator strengths of inner transitions of the Cu 2+ ‐ion are presented.