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专业: 凝聚态物性 II ：电子结构

[交流] Light Sources from Individual Ga-Doped ZnO Microwires

Electrically driven wavelength-tunable light emission from biased individual
Ga-doped ZnO microwires (ZnO:Ga MWs) is demonstrated. Single crystalline
ZnO:Ga MWs with different Ga-doping concentrations have been synthesized using
a one-step chemical vapor deposition method. Strong electrically driven light emission
from individual ZnO:Ga MW based devices is realized with tunable colors, and the
emission region is localized toward the center of the wires. Increasing Ga-doping
concentration in the MWs can lead to the redshift of electroluminescent emissions in
the visible range. Interestingly, owing to the lack of rectification characteristics, relevant
electrical measurement results show that the alternating current-driven light emission
functions excellently on the ZnO:Ga MWs. Consequently, individual ZnO:Ga MWs,
which can be analogous to incandescent sources, offer unique possibilities for future
electroluminescence light sources. This typical multicolor emitter can be used to rival
and complement other conventional semiconductor devices in displays and lighting.

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附件 1 : 封面-Wavelength-Tunable_Electroluminescent_Light_Sources_from_Individual_Ga-Doped_ZnO_Microwires.pdf

2017-06-28 14:10:33, 1.85 M