A ZnO/ZnMgO Multiple-Quantum-Well Ultraviolet Random Laser Diode

A ZnO/ZnMgO Multiple-Quantum-Well Ultraviolet Random Laser Diode
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ZnO/ZnMgO多量子阱紫外随机激光二极管

DOI:
10.1109/led.2010.2089424
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发表时间:
2011
影响因子:
4.9
通讯作者:
Zhao, Xingzhong
Zhao, Xingzhong
中科院分区:
工程技术2区
文献类型:
--
作者:
Long, Hao;Fang, Guojia;Li, Songzhan;Mo, Xiaoming;Wang, Haoning;Huang, Huihui;Jiang, Qike;Wang, Jianbo;Zhao, Xingzhong

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采用射频磁控溅射技术在n型GaN衬底上制备了ZnO/ZnMgO多量子阱紫外随机激光二极管。电致发光测试表明,在室温下,在足够的正偏压下,二极管显示出中心波长约为370 nm的纯紫外随机激光。尖锐激光峰的半峰全宽小于0.4nm。该器件具有4.7 A/cm 2的极低阈值电流密度和极弱的可见光发射。
A ZnO/ZnMgO multiple-quantum-well ultraviolet (UV) random laser diode was fabricated on a commercially available n-type GaN wafer using a radio frequency magnetron sputtering system. The electroluminescence measurements revealed that the diode exhibited fairly pure UV random lasing centered at ~370 nm under sufficient forward bias at room temperature. The full-widths at half-maximum of the sharp lasing peaks are less than 0.4 nm. The device has a very low threshold current density of 4.7 A/cm2 and extremely weak visible emission.
DOI: 10.1002/adma.200502761
发表时间: 2006-07-04
期刊: ADVANCED MATERIALS
影响因子: 29.4
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