Photoluminescence Study of CdSe _<i>x</i> S _{1- <i>x</i>} Quantum Dots in a Glass Spherical Microcavity

Abstract

The photoluminescence (PL) of CdSexS1-x semiconductor quantum dots (QDs) in a glass spherical microcavity is investigated. The CdSexS1-x semiconductor clusters embedded in a glass matrix are fabricated by using the heat treatment method. Periodical structures consisting of sharp spectral lines are observed in the PL spectra of CdSexS1-xQDs, which can be well explained by the coupling with the whispering gallery modes of the spherical microcavity based on Mie scattering theory.