Localized surface plasmon-enhanced near-ultraviolet emission from InGaN/GaN light-emitting diodes using silver and platinum nanoparticles.

Localized surface plasmon-enhanced near-ultraviolet emission from InGaN/GaN light-emitting diodes using silver and platinum nanoparticles.

Optics express (2013-03-14)

Sang-Hyun Hong, Chu-Young Cho, Sang-Jun Lee, Sang-Youp Yim, Wantae Lim, Sung-Tae Kim, Seong-Ju Park

초록

We demonstrate localized surface plasmon (LSP)-enhanced near-ultraviolet light-emitting diodes (NUV-LEDs) using silver (Ag) and platinum (Pt) nanoparticles (NPs). The optical output power of NUV-LEDs with metal NPs is higher by 20.1% for NUV-LEDs with Ag NPs and 57.9% for NUV-LEDs with Pt NPs at 20 mA than that of NUV-LEDs without metal NPs. The time-resolved photoluminescence (TR-PL) spectra shows that the decay times of NUV-LEDs with Ag and Pt NPs are faster than that of NUV-LEDs without metal NPs. The TR-PL and absorbance spectra of metal NPs indicate that the spontaneous emission rate is increased by resonance coupling between excitons in the multiple quantum wells and LSPs in the metal NPs.

MATERIALS

제품 번호

브랜드

제품 설명

349380

Sigma-Aldrich

Platinum, foil, thickness 0.1 mm, 99.9% trace metals basis

349348

Sigma-Aldrich

Platinum, foil, thickness 0.127 mm, 99.99% trace metals basis

349402

Sigma-Aldrich

Platinum, wire, diam. 0.25 mm, 99.9% trace metals basis

444685

Sigma-Aldrich

Platinum, wire, diam. 2.0 mm, 99.9% trace metals basis

357375

Sigma-Aldrich

Platinum, wire, diam. 0.076 mm, ≥99.99% trace metals basis

267244

Sigma-Aldrich

Platinum, foil, thickness 0.025 mm, 99.9% trace metals basis

267821

Sigma-Aldrich

Platinum, wire, diam. 0.127 mm, 99.9% trace metals basis

263273

Sigma-Aldrich

Gallium, 99.999% trace metals basis

263265

Sigma-Aldrich

Gallium, 99.99% trace metals basis

298093

Sigma-Aldrich

Platinum, gauze, 100 mesh, 99.9% trace metals basis

520780

Sigma-Aldrich

Platinum black, fuel cell grade, ≥99.9% trace metals basis

520799

Sigma-Aldrich

Platinum black, low bulk density, ≥99.9% trace metals basis

205915

Sigma-Aldrich

Platinum black, black, powder, ≤20 μm, ≥99.95% trace metals basis

203319

Sigma-Aldrich

Gallium, 99.9995% trace metals basis

349321

Sigma-Aldrich

Platinum, foil, thickness 0.25 mm, 99.99% trace metals basis

327484

Sigma-Aldrich

Platinum, shot, ≤3 mm, ≥99.9% trace metals basis

357359

Sigma-Aldrich

Platinum, wire, diam. 0.20 mm, ≥99.99% trace metals basis

357073

Sigma-Aldrich

Indium, wire, diam. 1.0 mm, 99.995% trace metals basis

204048

Sigma-Aldrich

Platinum, powder (coarse), 99.99% trace metals basis

357065

Sigma-Aldrich

Indium, wire, diam. 2.0 mm, 99.995% trace metals basis

357278

Sigma-Aldrich

Indium, foil, thickness 1.0 mm, 99.999% trace metals basis

357308

Sigma-Aldrich

Indium, foil, thickness 0.1 mm, ≥99.995% trace metals basis

57083

Sigma-Aldrich

Indium, bars, 99.95%

277959

Sigma-Aldrich

Indium, powder, 99.99% trace metals basis

327433

Sigma-Aldrich

Platinum, foil, thickness 0.125-0.135 mm, 99.9% trace metals basis

357294

Sigma-Aldrich

Indium, foil, thickness 0.25 mm, 99.99% trace metals basis

357286

Sigma-Aldrich

Indium, foil, thickness 0.5 mm, 99.99% trace metals basis

357367

Sigma-Aldrich

Platinum, wire, diam. 0.10 mm, 99.99% trace metals basis

264040

Sigma-Aldrich

Indium, foil, thickness 0.25 mm, 99.995% trace metals basis

264059

Sigma-Aldrich

Indium, foil, thickness 0.127 mm, 99.99% trace metals basis