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Room Temperature 339 nm Emission from Al<sub>0.13</sub>Ga<sub>0.87</sub>N/Al<sub>0.10</sub>Ga<sub>0.90</sub>N Double Heterostructure Light-Emitting Diode on Sapphire Substrate

39

Citations

16

References

2000

Year

Abstract

Room-temperature deep-ultraviolet emission has been observed from Al 0.13 Ga 0.87 N/Al 0.10 Ga 0.90 N double heterostructure light-emitting diodes (LEDs) on (0001)-oriented sapphire substrate. By introducing undoped barrier layers, which sandwich the active layer, the LED was operated at a peak emission wavelength of 339 nm with a narrow linewidth of 5.6 nm. The dependence of emission intensity on injection current suggests that the nonradiative recombination was suppressed and the diffusion current for the recombination process was dominant at the injection current of over 20 mA.

References

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