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- W4229074502 abstract "Abstract AlGaN-based deep ultraviolet (DUV) micro-light-emitting diodes ( μ LEDs) with emission wavelengths between 277 and 304 nm with mesa dimensions down to 20 μ m were fabricated. Their size-dependent electrical and optical characteristics were analyzed. At 20 A cm −2 , the external quantum efficiency (EQE) increased from 2.0% to 2.3% mainly due to the improved light extraction efficiency; the forward voltage was 7.6 V in 20 μ m sized μ LEDs in comparison to 9.1 V in 300 μ m LEDs due to better current spreading in the smaller devices. The peak EQEs of the 20 μ m μ LEDs were 2.5% and 4.0% for 277 and 304 nm, among the highest reported for DUV μ LEDs." @default.
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- W4229074502 date "2022-05-19" @default.
- W4229074502 modified "2023-10-18" @default.
- W4229074502 title "Size dependent characteristics of AlGaN-based deep ultraviolet micro-light-emitting-diodes" @default.
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- W4229074502 doi "https://doi.org/10.35848/1882-0786/ac6da0" @default.
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