Abstract
Evaluation of point defect equilibria in Hg 0.8 Cd 0.2 Te and Hg 0.6 Cd 0.4 Te using the Gibbs free energy minimization approach is demonstrated in this paper. Appropriate standard Gibbs free energies of formation for doubly charged mercury vacancy, mercury interstitial, electron and hole were derived. The p-n transition behavior in Hg 0.8 Cd 0.2 and Hg 0.6 Cd 0.4 Te with intrinsic defects and/or residual impurity donors was also calculated and compared favorably with experimental data from literature. © 1990 Taylor & Francis Group, LLC.