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- W2378622386 abstract "Al0.48Ga0.52N/Al0.54Ga0.36N multiple quantum wells(MQWs)structure for deep ultraviolet emission has been grown on sapphire by metalorganic chemical vapor deposition(MOCVD).Double crystal X-ray diffraction(DCXRD),atomic-force microscopy(AFM)and cathodoluminescence(CL)are used to characterize the structural and optical properties of MQWs,respectively.DCXRD shows that the multiple satellite peaks to 2nd order.The DCXRD simulation shows that the well and barrier thickness of MQWs are 2.1 nm and 9.4 nm,the Al content of barrier and well are 0.48 and 0.54,respectively.Clear step flows can be observed in the AFM image,which indicates a two dimensional growth mode.There are many cracks on the surface of the MQWs structure because of the high tensile stress.The emission peak of the AlGaN MQWs is about 295 nm in the deep ultraviolet region from the CL spectra.From the CL spectra,blue-green rigion emission related with defect can be also obseved." @default.
- W2378622386 created "2016-06-24" @default.
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- W2378622386 date "2009-01-01" @default.
- W2378622386 modified "2023-09-23" @default.
- W2378622386 title "The structral and optical properties of Al_(0.48)Ga_(0.52)N/Al_(0.54)Ga_(0.36)N MQWs gown by MOCVD" @default.
- W2378622386 hasPublicationYear "2009" @default.
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