Efficient nonradiative energy transfer from InGaN/GaN nanopillars to CdSe/ZnS core/shell nanocrystals

Sedat Nizamoglu, Burak Guzelturk, Dae Woo Jeon, In Hwan Lee, Hilmi Volkan Demir

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

In this study, we propose and demonstrate efficient electron-hole pair injection from InGaN/GaN multiple quantum well nanopillars (MQW-NPs) to CdSe/ZnS core/shell nanocrystal quantum dots (NQDs) via Förster-type nonradiative energy transfer. For that we hybridize blue-emitting MQW-NPs with red-emitting NQDs and the resultant exciton transfer reaches a maximum rate of (0.192 ns)-1 and a maximum efficiency of 83.0%. By varying the effective bandgap of core/shell NQDs, we conveniently control and tune the excitonic energy transfer rate for these NQD integrated hybrids, and our measured and computed exciton transfer rates are found to be in good agreement for all hybrid cases.

Original languageEnglish
Article number163108
JournalApplied Physics Letters
Volume98
Issue number16
DOIs
Publication statusPublished - 2011 Apr 18

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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