Low-Temperature Grown III-V Semiconductors
Abstract
A new approach for n-type modulation doping in In-based heterostructures is proposed where intrinsic defects from low-temperature (LT) grown InP are utilized to provide charge carriers without an external shallow impurity doping source The success of this approach is demonstrated by results from InGaAs/LT-InP heterostructures, where doping is provided by P(In) antisites, introduced during off stoichiometric LT growth of InP. Photoluminescence in a magnetic field and Shubnikov de Haas oscillations are applied for characterizing the electronic structure and recombination mechanisms. The efficiency of electron transfer and quantum mobility of a two dimensional electron gas formed near the heterointerface is shown to be much higher as compared to traditional extrinsic doping
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1997
- Accession Number
- ADA332147
Entities
People
- Charles W. Tu
Organizations
- University of California, San Diego