Tunable spectral response by hydrogen irradiation of Ga(AsN) superlattice diodes
Tunable spectral response by hydrogen irradiation of Ga(AsN) superlattice diodes
复制标题
Ga(AsN)超晶格二极管的氢辐照可调谐光谱响应
DOI:
10.1063/1.4884425
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发表时间:
2014
影响因子:
4
通讯作者:
Balakrishnan N
中科院分区:
文献类型:
--
作者:
Balakrishnan N
We report on the tuning of the spectral response of superlattice (SL) diodes based on dilute nitride Ga(AsN) alloys by post-growth hydrogenation. Hydrogen is incorporated into the superlattice where it neutralizes the electronic activity of nitrogen by forming N-H complexes. We exploit the controlled thermal dissociation of the complexes to tune the energy of the SL photocurrent absorption and electroluminescence emission; also, by annealing a submicron spot with a focused laser beam we create a preferential path for the injection of carriers, thus activating a nanoscale light emitting region. This method can be used for fabricating planar diode arrays with distinct optical active regions, all integrated onto a single substrate.
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DOI:
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发表时间:
2011
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