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Optical absorption spectra of magnesium‐implanted GaP
Author(s) -
Hörig W.,
Bouamama Kh.,
Neumann H.,
Nobes M. J.
Publication year - 1990
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.2170250612
Subject(s) - absorption (acoustics) , absorption edge , band gap , amorphous solid , photon energy , magnesium , ion implantation , ion , materials science , spectral line , absorption spectroscopy , two photon absorption , range (aeronautics) , analytical chemistry (journal) , atomic physics , photon , chemistry , optics , optoelectronics , crystallography , physics , metallurgy , organic chemistry , chromatography , astronomy , laser , composite material
Optical absorption spectra of magnesium‐implanted GaP single crystals are measured in the photon energy range below the fundamental edge. It is found that implantation results in the formation of exponential absorption tails with tailing energies up to about 0.8 eV and absorption coefficients up to about 10 5 cm −1 at 2.0 eV. The results are compared with optical measurements on GaP single crystals implanted with other ions and with optical absorption data of amorphous GaP.