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Shallow Donor Magnetospectroscopy in MBE Grown CdTe Layers Doped with Indium and Iodine
Author(s) -
Karpierz K.,
Lusakowski J.,
Szot M.,
Romanowski Z.,
Karczewski G.,
Grynberg M.
Publication year - 1998
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/(sici)1521-3951(199812)210:2<783::aid-pssb783>3.0.co;2-5
Subject(s) - cadmium telluride photovoltaics , indium , doping , metastability , substrate (aquarium) , materials science , spectral line , shallow donor , population , analytical chemistry (journal) , chemistry , optoelectronics , physics , oceanography , organic chemistry , demography , chromatography , astronomy , sociology , geology
We present the results and analysis of magnetooptical measurements performed at LHe temperatures on thin n‐CdTe layers doped with Indium or Iodine, grown on an undoped CdTe buffer and a semiinsulating GaAs substrate. We show the possibility of metastable population of shallow donor centers in undoped CdTe. We report the difference in chemical shifts of different species. The dependence of the shape of the obtained spectra on the location of donor centers relative to the interface is discussed. The analysis of the temperature and voltage dependence of the shape of spectra shows that non‐Gaussian shape of the peaks should be considered.