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.
Bibliographical noteFunding 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.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)