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Performance and application of high-power ultraviolet AlGaInN light-emitting diodes

机译：高功率紫外线藻类发光二极管的性能与应用

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摘要

We report on high output power from the quaternary AlGaInN multiple quantum well (MQW) ultraviolet light emitting diodes (UV LEDs) in the 340 nm and 280 nm wavelength range. The output power up to 1.5 mW from a 100 μm diameter device with bare-chip configuration was measured under room temperature cw operation. The internal quantum efficiency was estimated to be between 7 and 10%. In addition, the output power and external quantum efficiency for fully packaged 1x1mm2 large area device were as high as 54.6 mW and 1.45%, respectively, at the injection current of 200 A/cm2 under pulsed operation. The devices were incorporated into prototype system for fluorescence based bio-sensing. We also report the performance of 285 nm UV LEDs.
机译：我们在340nm和280nm波长范围内从四季藻藻n多量子阱（MQW）紫外发光二极管（UV LED）的高输出功率报告。在室温CW操作下测量高达100μm直径装置的输出功率，从100μm直径的装置，室温CW操作测量。内部量子效率估计为7％至10％。此外，在脉冲操作下，用于完全封装的1x1mm2大面积器件的输出功率和外部量子效率分别高达54.6mW和1.45％，分别在200a / cm2的喷射电流下。该器件掺入基于荧光的生物传感的原型系统中。我们还报告了285纳米UV LED的性能。

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