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

doi:10.1063/1.3562035

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 journal › Article › peer-review

26 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 language	English
Article number	163108
Journal	Applied Physics Letters
Volume	98
Issue number	16
DOIs	https://doi.org/10.1063/1.3562035
Publication status	Published - 2011 Apr 18
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Efficient nonradiative energy transfer from InGaN/GaN nanopillars to CdSe/ZnS core/shell nanocrystals",

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 F{\"o}rster-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.",

author = "Sedat Nizamoglu and Burak Guzelturk and Jeon, {Dae Woo} and Lee, {In Hwan} and Demir, {Hilmi Volkan}",

note = "Funding Information: We acknowledge the financial support by ESF European Young Investigator Award (EURYI) program and TUBITAK under the Project Nos. EEEAG 110E010, 109E004, 109E002, and 107E088. H.V.D. acknowledges additional support from the Turkish National Academy of Sciences Distinguished Young Scientist Award (TUBA GEBIP) and NRF RF Fellowship programs.",

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language = "English",

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AU - Nizamoglu, Sedat

AU - Guzelturk, Burak

AU - Jeon, Dae Woo

AU - Lee, In Hwan

AU - Demir, Hilmi Volkan

N1 - Funding Information: We acknowledge the financial support by ESF European Young Investigator Award (EURYI) program and TUBITAK under the Project Nos. EEEAG 110E010, 109E004, 109E002, and 107E088. H.V.D. acknowledges additional support from the Turkish National Academy of Sciences Distinguished Young Scientist Award (TUBA GEBIP) and NRF RF Fellowship programs.

PY - 2011/4/18

Y1 - 2011/4/18

N2 - 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.

AB - 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.

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

Abstract

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