Original scientific paper
The equilibrium concentration of thermal acceptors in p-type germanium
M. Stojić
; Laboratory of Solid State Physics Institute of Nuclear Sciences “Boris Kidrič”, Beograd
S. Kostoski
; Laboratory of Solid State Physics Institute of Nuclear Sciences “Boris Kidrič”, Beograd
V. Spirić
; Laboratory of Solid State Physics Institute of Nuclear Sciences “Boris Kidrič”, Beograd
Abstract
The temperature and time dependence of thermal acceptors concentration in quenched, galium doped (6 * 10^13 cm^-3), p-type germanium was studied. It is confirmed that the time for thermal acceptor equilibrium concentration reestablishment is considerably shorter than previously reported. The observed thermal acceptor formation energy, E_A^F = 1,18 eV, which is smaller than the formation energy of single vacancy (E_IV^F = 1,64-2,54 eV), and the descendant part of the curve In N_A = f (1/T) from 870 K to near the melting point of germanium, shows that the process of thermal defects introduction is very complex. The process of single vacancies generation is followed by other processes, such as the formation of divacancies and the associations of vacancies and divacancies including the effects of dislocations which are not negligible.
Keywords
Hrčak ID:
321589
URI
Publication date:
26.8.1971.
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