Two-photon absorption characterization of HgCdTe
Abstract
Magneto-Optical measurements of Hg(1-x)Cd(X)Te alloys have provided a new means of studying impurities and defects in this important II-VI material. Two-photon magnetoabsorption (TMPA) was used to accurately determine the temperature dependence of the energy gap of various HgCdTe alloys, revealing behavior that deviates from currently accepted models. In addition, magneto-optical techniques were used to detect the presence of both shallow and deep impurities/defects and accurately determine their activation energies, thus providing information necessary for understanding the electrical and optical properties of the material.
- Publication:
-
Annual Interim Report
- Pub Date:
- January 1989
- Bibcode:
- 1989ntsu.rept.....S
- Keywords:
-
- Electrical Properties;
- Electromagnetic Absorption;
- Energy Gaps (Solid State);
- Magneto-Optics;
- Mercury Cadmium Tellurides;
- Optical Properties;
- Thermodynamic Properties;
- Activation Energy;
- Defects;
- Impurities;
- Narrowband;
- Semiconductor Devices;
- Spectroscopy;
- Atomic and Molecular Physics