What question did this study set out to answer?

Synthesize and characterize core/multishell nanowire radial heterostructures to evaluate their functionality as tunable, high-efficiency multicolor light-emitting diodes.

September 29, 2005Nano Letters

Core/Multishell Nanowire Heterostructures as Multicolor, High-Efficiency Light-Emitting Diodes

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Authors

FQFang QianChinese Academy of Sciences SGSilvija GradečakNational University of Singapore YLYat LiTamkang University

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Implication

Experimental study demonstrates tunable emission across 365 to 600 nm in core-multishell nanowires, highlighting pathways for integrated nanoscale photonic systems.

Key Points

Synthesize and characterize core/multishell nanowire radial heterostructures to evaluate their functionality as tunable, high-efficiency multicolor light-emitting diodes.
Synthesized radial heterostructures featuring an n-GaN core and InxGa1-xN/GaN/p-AlGaN/p-GaN shells via metal-organic chemical vapor deposition, varying indium mole fraction to tune emission wavelength.
Characterized structural morphology and shell composition using cross-sectional transmission electron microscopy and energy-dispersive X-ray spectroscopy.
Evaluated electrical transport properties and forward-bias electroluminescence spectra to assess diode performance and quantum efficiency.
Transmission electron microscopy confirmed dislocation-free single-crystal nanowires with a distinct triangular cross-sectional morphology.
Energy-dispersive X-ray spectroscopy verified precise compositional control and thickness reproducibility across individual shells.
Forward-bias electroluminescence demonstrated functional light-emitting diodes with tunable emission ranging from 365 to 600 nm and high quantum efficiencies.

Cite This Study

Qian et al. (2005) studied this question.

synapsesocial.com/papers/6a819f17f34fcd4e777764a2 https://doi.org/10.1021/nl051689e

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Implication

Experimental study demonstrates tunable emission across 365 to 600 nm in core-multishell nanowires, highlighting pathways for integrated nanoscale photonic systems.

Core/Multishell Nanowire Heterostructures as Multicolor, High-Efficiency Light-Emitting Diodes

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Cite This Study

Core/Multishell Nanowire Heterostructures as Multicolor, High-Efficiency Light-Emitting Diodes

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Implication

Key Points

Cite This Study

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