Noncontact laser study of the recombination characteristics of Cd(0.3)Hg(0.7)Te solid solution
Abstract
The concentration and activation energy of recombination centers and the electron and hole capture cross sections were determined for Cd(0.3)Hg(0.7)Te solid solution from experimental temperature dependences of the hole and electron lifetimes measured in the temperature range 300-77 K. These dependences were obtained by using the noncontact method of laser interferometry. An important advantage of the method is the capability to determine individually the electron and hole lifetimes locally for each specimen with a resolution of about 100 x 100 microns.
- Publication:
-
Pisma v Zhurnal Tekhnischeskoi Fiziki
- Pub Date:
- October 1991
- Bibcode:
- 1991PZhTF..17...18V
- Keywords:
-
- Laser Interferometry;
- Mercury Cadmium Tellurides;
- Recombination Reactions;
- Solid Solutions;
- Activation Energy;
- Carbon Dioxide Lasers;
- Fabry-Perot Interferometers;
- Helium-Neon Lasers;
- Temperature Dependence;
- Solid-State Physics