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- W2943896142 abstract "We demonstrate the enhancement of luminescence efficiency in GaN:Eu-based light emitting diodes (LEDs) by surface plasmons utilizing gold nanoparticles (NPs). A gold thin film is deposited on a GaN:Eu layer and subsequently thermal-annealed to form gold NPs. The size of the NPs can be controlled by changing the thickness of the films. The room-temperature photoluminescence (PL) intensity of the GaN:Eu LEDs with the NPs increases by 1.42-times compared with those without the NPs when the film thickness is 15 nm, which is attributed to enhanced light extraction efficiency due to coupling with localized surface plasmons. Time-resolved PL spectra at 10 K of the LEDs with the NPs show a shorter lifetime, supporting the existence of the coupling with local surface plasmons. The injection current-light output intensity profiles of the LEDs with the NPs shows 1.3-times enhancement of the output power due to coupling with local surface plasmons." @default.
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- W2943896142 date "2019-05-08" @default.
- W2943896142 modified "2023-09-26" @default.
- W2943896142 title "Enhanced luminescence efficiency of GaN:Eu-based light-emitting diodes by localized surface plasmons utilizing gold nanoparticles" @default.
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- W2943896142 doi "https://doi.org/10.7567/1347-4065/ab0ad1" @default.
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