The interaction between CdSc-CdS-ZnS semiconductor quantum dot emitters (QDs) and sol-gel based asymmetric Bragg microcavities is studied. It is found that the quality factor (Q) of such microcavities is limited by interlayer diffusion. This results in maximum Q values of less than 100. Despite this, these structures still exhibit optical signatures characteristic of the Purcell effect, where large modifications to the photoluminescence properties of QDs are observed.
Sol-Gel Based Vertical Optical Microcavities with Quantum Dot Defect Layers / Jasieniak, J; Sada, C; Chiasera, A; Ferrari, M; Martucci, A; Mulvaney, P. - In: ADVANCED FUNCTIONAL MATERIALS. - ISSN 1616-301X. - 18:23(2008), pp. 3772-3779. [10.1002/adfm.200800784]
Sol-Gel Based Vertical Optical Microcavities with Quantum Dot Defect Layers
Chiasera A;
2008
Abstract
The interaction between CdSc-CdS-ZnS semiconductor quantum dot emitters (QDs) and sol-gel based asymmetric Bragg microcavities is studied. It is found that the quality factor (Q) of such microcavities is limited by interlayer diffusion. This results in maximum Q values of less than 100. Despite this, these structures still exhibit optical signatures characteristic of the Purcell effect, where large modifications to the photoluminescence properties of QDs are observed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
