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Efficiency droop in 245–247 nm AlGaN light-emitting diodes with continuous wave 2 mW output power
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10.1063/1.3302466
/content/aip/journal/apl/96/6/10.1063/1.3302466
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/6/10.1063/1.3302466
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic structure of AlGaN-based 245 nm UVLED.

Image of FIG. 2.
FIG. 2.

Charge-coupled device microscope image of monolithic array 245 nm LED device.

Image of FIG. 3.
FIG. 3.

(a) I-V and (b) L-I characteristics and EQE of 245 and 247 nm UV LEDs in cw operation. Inset shows I-V characteristics of individual pixels and all four parallel pixels connected in parallel.

Image of FIG. 4.
FIG. 4.

(a) EQE vs current for 245 nm DUV LEDs and (b) EQE vs square root of current density and fit with Eq. (1) for 245 and 275 nm DUV LEDs.

Image of FIG. 5.
FIG. 5.

Spectra of 245 nm UVLEDs as a function of pulse injection current density (500 ns pulses).

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/content/aip/journal/apl/96/6/10.1063/1.3302466
2010-02-09
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Efficiency droop in 245–247 nm AlGaN light-emitting diodes with continuous wave 2 mW output power
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/6/10.1063/1.3302466
10.1063/1.3302466
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