Abstract:
In this study, the formation of a position-dependent conductivity transition in Cd
1-xZn
xTe crystals is investigated. The results indicate that the transition from p- to n-type Cd
1-xZn
xTe (
x = 0.04) can be ascribed to the formation of the V
Cd-Cd
i interface. Cd vacancies (V
Cd) are easily generated in the Te-rich condition crystal growth process and are responsible for the p-type conductivity. However, Cd vacancies are filled and the n-type defect, Cd interstitial (Cd
i), form in the Cd-rich condition. This leads to the transition from p-type to n-type conductivity during the growth of Cd
1-xZn
xTe (
x = 0.04).