Abstract
Photoluminescence (PL) and resonant PL (RPL) have been performed at low temperatures in a number of InAs/GaAs quantum dots (QD’s) whose emission energies range from 1.4 to 1.08 eV. A simple, standard electron-phonon interaction model reproduces PL and RPL spectra well. The value of the electron-phonon interaction is large for small QD’s and evolves to small values for large, well-formed QD’s. This trend is consistent with recent experimental results in InAs QD’s and provides an experimental basis to recent theoretical speculations.
- Received 16 November 1999
DOI:https://doi.org/10.1103/PhysRevB.62.4642
©2000 American Physical Society