Journal
OPTICS EXPRESS
Volume 22, Issue 14, Pages 16731-16737Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.22.016731
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Funding
- NSFC [51172041, 51372035]
- Program for New Century Excellent Talents in University [NCET-11-0615]
- 973 Program [2012CB933703]
- 111 project [B13013]
- Fund from Jilin Province [20121802, 201201061]
- Specialized Research Fund for the Doctoral Program of Higher Education [20130043110004]
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Direct fabrication of light emitting devices on metal substrates is highly desirable due to their advantages of high thermal conductivity and light reflection. In this work, we demonstrated a feasibility of directly fabricating ZnO-based ultraviolet laser diodes on metal substrates. By introducing an anti-oxidation buffer layer, Au/MgO/ZnO metal-insulator-semiconductor heterojunction devices are successfully fabricated on the copper substrate. Electrically pumped ultraviolet random lasing was achieved from ZnO active layer. The use of copper substrate offers some merits, including lower thermal effect and higher stability of emission wavelength. (C) 2014 Optical Society of America
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