White light generation by resonant nonradiative energy transfer from epitaxial InGaN/GaN quantum wells to colloidal CdSe/ZnS core/shell quantum dots

Nizamoğlu, Sedat; Sarı, Emre; Baek, Jong Hyeob; Lee, In Hwan; Demir, Hilmi Volkan

doi:10.1088/1367-2630/10/12/123001

Cited by 29 publications

(30 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Förster-type NRET is a dipole-dipole interaction between resonant donor and acceptor species and has a well-defined distance dependence [20]. NRET has been demonstrated in a large range of material systems, with potential for LED [9,[21][22][23][24][25] and light harvesting applications [2,3,13,[26][27][28][29][30][31][32][33]. QDs possess excellent optical properties such as broadband absorption with narrow and tunable emission profiles, giving them a distinct advantage over organic dyes [34,35].…”

Section: Introductionmentioning

confidence: 99%

Ag colloids and arrays for plasmonic non-radiative energy transfer from quantum dots to a quantum well

et al. 2017

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Ag colloids and arrays for plasmonic non-radiative energy transfer from quantum dots to a quantum well

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Inorganic nanocrystal quantum dots (QDs) are intensively investigated as an alternative to phosphors. Energy transfer from the LED QWs to the nanocrystals can be achieved either through radiative pumping, as for the phosphor coatings [2,3], or via a nonradiative energy transfer mechanism such as Förster resonance energy transfer (FRET) [4,5]. FRET occurs through the near-field Coulomb interaction of a resonant donor-acceptor dipole pair [6].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, implementation of FRET for color conversion in LEDs requires small separations between the donor QWs and QD acceptors. Demonstrations of pumping via nonradiative energy transfer have been achieved using near surface QWs and a thin layer of QDs [4,5,7] or etched structures which allow the acceptors to be brought in close proximity to the QW [10,11]. Both options introduce additional fabrication complexity for commercial devices.…”

Section: Introductionmentioning

confidence: 99%

Carrier density dependence of plasmon-enhanced nonradiative energy transfer in a hybrid quantum well-quantum dot structure

et al. 2015

View full text Add to dashboard Cite

An array of Ag nanoboxes fabricated by helium-ion lithography is used to demonstrate plasmon-enhanced nonradiative energy transfer in a hybrid quantum well-quantum dot structure. The nonradiative energy transfer, from an InGaN/GaN quantum well to CdSe/ZnS nanocrystal quantum dots embedded in an ~80 nm layer of PMMA, is investigated over a range of carrier densities within the quantum well. The plasmon-enhanced energy transfer efficiency is found to be independent of the carrier density, with an efficiency of 25% reported. The dependence on carrier density is observed to be the same as for conventional nonradiative energy transfer. The plasmon-coupled energy transfer enhances the QD emission by 58%. However, due to photoluminescence quenching effects an overall increase in the QD emission of 16% is observed. References and links1. E. F. Schubert, Light-Emitting Diodes (Cambridge University, 2006). 2. H. V. Demir, S. Nizamoglu, T. Erdem, E. Mutlugun, N. Gaponik, and A. Eychmuller, "Quantum dot integrated LEDs using photonic and excitonic color conversion," Nano Today 6(6), 632-647 (2011). 3. H. S. Chen, C.-K. Hsu, and H. Y. Hong, "InGaN-CdSe-ZnSe quantum dots white LEDs," IEEE Photon.Technol. Lett. 18(1), 193-195 (2006). 4. M. Achermann, M. A. Petruska, S. Kos, D. L. Smith, D. D. Koleske, and V. I. Klimov, "Energy-transfer pumping of semiconductor nanocrystals using an epitaxial quantum well," Nature 429(6992), 642-646 (2004). 5. S. Nizamoglu, E. Sari, J. H. Baek, I. H. Lee, and H. V. Demir, "White light generation by resonant nonradiative energy transfer from epitaxial InGaN/GaN quantum wells to colloidal CdSe/ZnS core/shell quantum dots," New J. Phys. 10(12), 123001 (2008). 6. T. Förster, "Intermolecular energy migration and fluorescence," Ann. Phys. 437, 55-75 (1948).

show abstract

“…Recent experiments indicate that multi-color emitters like (CdSe)ZnS)CdSe (QDQW) heteronanostructures integrated on LEDs hold promise for use as nanoluminophors in future white LEDs (WLEDs) [7,8].…”

Section: Introductionmentioning

confidence: 99%

Multi-Color Emission in Quantum-Dot-Quantum-Well Semiconductor Heteronanocrystals

Kostić

Stojanović

2009

Acta Phys. Pol. A

View full text Add to dashboard Cite

We present calculation results of multi-color spontaneous emission from quantum-dot-quantum-well semiconductor heteronanocrystals. Our theoretical results explain experimental results of onion-like spherical system similar to: CdSe (core), ZnS (shell), CdSe (shell) spherical quantum dots surrounded by ZnS. We demonstrate influence of shell thickness to exciton localization in distinct layers of heteronanocrystals. Multi-color emission of such heterosystem is determined by l = 0, n = 1 state localization in CdSe core and by l = 0, n = 2 state localization in CdSe shell.

show abstract

White light generation by resonant nonradiative energy transfer from epitaxial InGaN/GaN quantum wells to colloidal CdSe/ZnS core/shell quantum dots

Cited by 29 publications

References 34 publications

Ag colloids and arrays for plasmonic non-radiative energy transfer from quantum dots to a quantum well

Ag colloids and arrays for plasmonic non-radiative energy transfer from quantum dots to a quantum well

Carrier density dependence of plasmon-enhanced nonradiative energy transfer in a hybrid quantum well-quantum dot structure

Multi-Color Emission in Quantum-Dot-Quantum-Well Semiconductor Heteronanocrystals

Contact Info

Product

Resources

About