Accession Number:

ADA329744

Title:

Nanoscopic Processing and Atomistic Kinetics of Lattice Mismatched Growth on Submicron Mesas

Descriptive Note:

Final rept. 1 Apr 93-31 May 97,

Corporate Author:

CALIFORNIA UNIV LOS ANGELES DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

Report Date:

1997-08-28

Pagination or Media Count:

15.0

Abstract:

This Final technical report summarizes the most important findings of the research work on a lattice mismatch strain induced formation of coherent 3D islands, also dubbed self-assembled quantum dots, and b growth of such island quantum dots on in-situ growth control prepared submicron width stripe mesas. The specific accomplishments include the demonstration of 1 a re-entrant behavior of 2D to 3D island morphology evolution, 2 mass exchange between 2D and 3D features during evolution of their density, 3 quantum box nature of the 3D islands via photoluminescence excitation spectroscopy, 4 3D island strain driven adatom migration during cap layer growth, 5 vertically self-organized growth of island quantum dots, 6 lasing from single and vertically self-organized stacks of quantum dots, and 7 selective area growth of InAs island quantum dots on sub 100 nm GaAs001 stripe mesa via control of interfacet In migration.

Subject Categories:

  • Electricity and Magnetism
  • Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE