期刊
OPTICAL MATERIALS EXPRESS
卷 4, 期 12, 页码 2565-2573出版社
OPTICAL SOC AMER
DOI: 10.1364/OME.4.002565
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资金
- Advanced Optoelectronic Technology Inc.
- National Science Council of Taiwan [NSC 101-2221-E-009-046-MY3, MOST103-2120-M-110-003]
The InN dot-like layer was applied in the gallium nitride based material for the purpose of infrared photodetectors (PDs). This InN layer was grown by a low-pressure metal organic chemical vapor deposition technology under different growth temperatures. The X-ray diffraction patterns provide the information of crystal structure and the hexagonal orientation was detected. The Raman shifts and photoluminescence were also used to characterize the quality of InN film. Finally, the fabricated Schottky-type photodetector was tested under a solar simulator and a long-wavelength laser (lambda = 1550nm). The measurements show a highly linear relation between photo-generated currents and laser powers for the wavelength of 1550 nm. In the photonic detection range suitable for optical fiber communiation, a quantum efficiency of 9.2% can be observed. (C) 2014 Optical Society of America
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