Temperature dependent risetimes of exciton luminescence in different size quantum wells are obtained by using time correlated single phonon counting technique. The decreasing rate of risetimes with increasing temperature, the photoluminescence spectra, and the temperature dependent decay times consistently show that excitons are likely to be localized on interface defects as the well size decreases.
Bibliographical noteFunding Information:
Acknowledgements - This work was financially supported by MOST and KOSEF through Center for Molecular Science (D.Kim) and bv the Ministrv of Education and KOSEF (Yonsei U&ersity). ’
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Materials Chemistry