Enhancing the conversion efficiency of red emission by spin-coating CdSe quantum dots on the green nanorod light-emitting diode

Ya Ju Lee; Chia Jung Lee; Chun Mao Cheng

doi:10.1364/OE.18.00A554

Enhancing the conversion efficiency of red emission by spin-coating CdSe quantum dots on the green nanorod light-emitting diode

Ya Ju Lee, Chia Jung Lee, Chun Mao Cheng

Graduate Institute of Electro-Optical Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

A hybrid structure of CdSe quantum dots (QDs) (λ = 640nm) spin-coated on the indium gallium nitride (InGaN) nanorod light-emitting diode (LED, λ = 525nm) is successfully fabricated. Experimental results indicate that the randomness and the minuteness of nanorods scatter the upcoming green light into the surrounding CdSe QDs efficiently, subsequently alleviating the likelihood of the emitted photons of red emission being recaptured by the CdSe QDs (self-absorption effect), and that increases the coupling probability of emission lights and the overall conversion efficiency. Moreover, the revealed structure with high color stability provides an alternative solution for general lighting applications of next generation.

Original language	English
Pages (from-to)	A554-A561
Journal	Optics Express
Volume	18
Issue number	104
DOIs	https://doi.org/10.1364/OE.18.00A554
Publication status	Published - 2010 Nov 8

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "A hybrid structure of CdSe quantum dots (QDs) (λ = 640nm) spin-coated on the indium gallium nitride (InGaN) nanorod light-emitting diode (LED, λ = 525nm) is successfully fabricated. Experimental results indicate that the randomness and the minuteness of nanorods scatter the upcoming green light into the surrounding CdSe QDs efficiently, subsequently alleviating the likelihood of the emitted photons of red emission being recaptured by the CdSe QDs (self-absorption effect), and that increases the coupling probability of emission lights and the overall conversion efficiency. Moreover, the revealed structure with high color stability provides an alternative solution for general lighting applications of next generation.",

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Y1 - 2010/11/8

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Enhancing the conversion efficiency of red emission by spin-coating CdSe quantum dots on the green nanorod light-emitting diode

Abstract

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