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Stable Efficient Solid‐State White‐Light‐Emitting Phosphor with a High Scotopic/Photopic Ratio Fabricated from Fused CdSe–Silica Nanocomposites
Author(s) -
Lita Adrian,
Washington Aaron L.,
van de Burgt Lambertus,
Strouse Geoffrey F.,
Stiegman A. E.
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201000493
Subject(s) - chromaticity , scotopic vision , phosphor , materials science , nanocomposite , photopic vision , excited state , white light , optoelectronics , radiation , optics , nanotechnology , physics , atomic physics , retina
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.