Stable Efficient Solid-State White-Light-Emitting Phosphor with a High Scotopic/Photopic Ratio Fabricated from Fused CdSe-Silica Nanocomposites

Stable Efficient Solid-State White-Light-Emitting Phosphor with a High Scotopic/Photopic Ratio Fabricated from Fused CdSe-Silica Nanocomposites

Stable, bright‐white‐light‐emitting phosphor is fabricated from 5.5‐nm CdSe quantum dots that are incorporated into a silica gel and calcined at 500 °C under air. Excited by UV radiation, the emitted light has almost pure white‐light coordinates of (0.34, 0.36) on the CIE (Commission internationale...

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Veröffentlicht in:Advanced materials (Weinheim) 2010-09, Vol.22 (36), p.3987-3991
Hauptverfasser: Lita, Adrian, Washington II, Aaron L., van de Burgt, Lambertus, Strouse, Geoffrey F., Stiegman, A. E.
Format: Artikel
Sprache:eng
Schlagworte:
Cadmium Compounds - chemistry
cadmium selenide nanoparticles
Color
composite materials
Electrodes
Light
Luminescent Agents - chemistry
Nanostructures - chemistry
Nanotechnology - methods
photoluminescence
Quantum Dots
Selenium Compounds - chemistry
silica
Silicon Dioxide - chemistry
Spectrum Analysis
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Zusammenfassung:Stable, bright‐white‐light‐emitting phosphor is fabricated from 5.5‐nm CdSe quantum dots that are incorporated into a silica gel and calcined at 500 °C under air. Excited by UV radiation, the emitted light has almost pure white‐light coordinates of (0.34, 0.36) on the CIE (Commission internationale de l’éclairage) chromaticity chart and a Scotopic/Photopic ratio of 2.56.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201000493