Improving Performance of InGaN/GaN Light‐Emitting Diodes and GaAs Solar Cells Using Luminescent Gold Nanoclusters
Author(s) -
Min-De Yang,
SzuLin Wu,
G. W. Shu,
Jiaxi Wang,
J. L. Shen,
C.H. Wu,
ChengAn J. Lin,
Walter H. Chang,
Tai-Yuan Lin,
TienChang Lu,
HaoChung Kuo
Publication year - 2009
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2009/840791
Subject(s) - nanoclusters , materials science , light emitting diode , optoelectronics , electroluminescence , luminescence , diode , quantum efficiency , nanotechnology , layer (electronics)
We studied the optoelectronic properties of the InGaN/GaN multiple-quantum-well light emitting diodes (LEDs) and single-junction GaAs solar cells by introducing the luminescent Au nanoclusters. The electroluminescence intensity for InGaN/GaN LEDs increases after incorporation of the luminescent Au nanoclusters. An increase of 15.4% in energy conversion efficiency is obtained for the GaAs solar cells in which the luminescent Au nanoclusters have been incorporated. We suggest that the increased light coupling due to radiative scattering from nanoclusters is responsible for improving the performance of the LEDs and solar cells
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