The effect of γ radiation on the properties of p-n-p structures based on polycrystalline cadmium telluride
Zh. ZhanabergenovPhysicotechnical Institute, Academy of Sciences of the Republic of Uzbekistan, Tashkent, UzbekistanШ. А. МирсагатовPhysicotechnical Institute, Academy of Sciences of the Republic of Uzbekistan, Tashkent, UzbekistanSmagul KarazhanovPhysicotechnical Institute, Academy of Sciences of the Republic of Uzbekistan, Tashkent, UzbekistanS. MuzaffarovaPhysicotechnical Institute, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
ABI
Abstract
The parameters of p-n-p structures based on polycrystalline cadmium telluride films exhibit non-monotonic variation with increasing doses of γ radiation. It is established that this behavior is related to an increase in the base thickness and to a nonmonotonic dose dependence of the minority carrier lifetime, which is accompanied by recharge of the surface states and a by a change in the potential barrier height at the grain boundaries.