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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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Efficient energy transfer from InGaN quantum wells to Ag nanoparticles.

G W Shu¹, C H Chiu, L T Huang

¹Physics Department, Chung Yuan Christian University, Chung-Li, Taiwan.

Physical Chemistry Chemical Physics : PCCP

|February 6, 2013

Summary

Nonradiative energy transfer between Indium Gallium Nitride (InGaN) quantum wells and silver nanoparticles was confirmed. Energy transfer efficiency reached 83%, following a predicted distance dependence for dipole interactions.

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Area of Science:

Materials Science
Nanotechnology
Quantum Optics

Background:

Indium Gallium Nitride (InGaN) quantum wells are crucial for optoelectronic devices.
Silver nanoparticles offer unique plasmonic properties for energy transfer applications.
Understanding energy transfer mechanisms is key to enhancing device performance.

Purpose of the Study:

To demonstrate and quantify nonradiative energy transfer from InGaN quantum wells to silver nanoparticles.
To investigate the distance dependence of the energy transfer rate.
To determine the maximum energy transfer efficiency in this system.

Main Methods:

Time-resolved photoluminescence spectroscopy was employed to study energy transfer dynamics.
Analysis of the distance dependence of the energy transfer rate.
Calculation of dipole interaction based on Joule losses in acceptors.

Main Results:

Nonradiative energy transfer was unambiguously demonstrated.
The energy transfer rate showed a 1/d(3) distance dependence, aligning with dipole interaction predictions.
A maximum energy transfer efficiency of 83% was achieved.

Conclusions:

Efficient nonradiative energy transfer occurs between InGaN quantum wells and Ag nanoparticles.
The observed distance dependence confirms the role of dipole-dipole interactions.
High energy transfer efficiency suggests potential for advanced optoelectronic device applications.