P. Kaminski, APPLICATION OF DEEP-LEVEL TRANSIENT SPECTROSCOPY FOR MONITORING POINT-DEFECTS IN III-V SEMICONDUCTORS, Materials science & engineering. B, Solid-state materials for advanced technology, 20(1-2), 1993, pp. 221-224
Deep-level transient spectroscopy has been employed for monitoring gro
wn-in point defects in vapour phase epitaxial GaAs0.6P0.4:Te and GaP:N
,S. It is shown that the concentrations of deep electron traps T 1 (0.
20 eV) and T2 (0.18 eV) in GaAs0.6P0.4:Te are dependent on the shallow
donor concentration and these traps are tentatively identified as Te(
As)Ga(As)Te(As) and 0(i)Te(As) complexes respectively. The concentrati
ons of 0.24 eV and 0.44 eV electron traps detected in GaP:N,S are depe
ndent on the growth temperature and these traps are attributed to P va
cancies and the ((N(P))2V(Ga))-complex respectively.