Manufacturing science and manufacturing competitiveness
B.L. Crowder
ISMSS 1989
The luminescence centers in ZnTe(Li) and ZnTe(P) have been studied from 2 to 300<°K, using photoexcitation and electron beam excitation. As-grown crystals of ZnTe(P) and ZnTe(Li) of comparable electrical properties exhibit similar luminescence spectra. An emission series starting at 2.33 eV (2<°K) present in both materials can be attributed to transitions from the conduction band to the un-ionized acceptor level. The response of ZnTe(Li) and ZnTe(P) to thermal treatments is different. Li can be removed from ZnTe(Li) by low-temperature (250A<°C) firings for extended periods of time (8 days), and the associated emission peaks markedly diminish in intensity. The emission of ZnTe(P) is stable under this treatment. High-temperature, short-term firings (850<°C, 2 h) under maximum Zn overpressure produce different changes in the emission spectra and in the electrical properties of ZnTe(P) and ZnTe(Li). ZnTe(Li, Al) crystals exhibit a luminescence spectrum which indicates that interaction between Li and Al occurs. © 1969 The American Physical Society.
B.L. Crowder
ISMSS 1989
Alan C. Warren, J. Woodall, et al.
Applied Physics Letters
M.R. Lorenz, T.N. Morgan, et al.
Physical Review
Gerald Burns, C.R. Wie, et al.
Applied Physics Letters