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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3806–3809

Controlling the influence of Auger recombination on emission from colloidal quantum dots by photonic crystal

Xingsheng Xu  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 3806-3809 (2014)
http://dx.doi.org/10.1364/OL.39.003806


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Abstract

By investigating the time-resolved spectra of colloidal quantum dots (QDs) on silicon nitride (SiN) photonic crystals (PhCs), it is found that the ratio of charged-exciton (trion) emission and the multiexciton emission to the total emission can be controlled by two-dimensional PhCs. Even by conservative estimates, the ratios of trion to total emission from QDs on PCs reaches 10%, which is much larger than that of the dark state seen in the blinking phenomenon of single QDs. Therefore Auger recombination could be controlled by SiN PhCs.

© 2014 Optical Society of America

OCIS Codes
(250.5230) Optoelectronics : Photoluminescence
(160.4236) Materials : Nanomaterials
(160.5298) Materials : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: February 17, 2014
Revised Manuscript: May 7, 2014
Manuscript Accepted: May 15, 2014
Published: June 19, 2014

Citation
Xingsheng Xu, "Controlling the influence of Auger recombination on emission from colloidal quantum dots by photonic crystal," Opt. Lett. 39, 3806-3809 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-3806


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