Nanocrystalline Phosphors for Lighting and Detection Applications

Abstract:

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We report the development of new nanoparticle phosphors and quantum dot structures designed for applications to enhance the color rendering and efficiency of high brightness white LEDs, as well as for bio-sensing applications. The intrinsic problem of self-absorption, high toxicity, and high sensitivity to thermal quenching of conventional quantum dot systems has prevented their adoption to LED devices. Doped Cd-free quantum dots may circumvent these issues due to their distinct Stokes shift and improved stability at high temperature. We report on the modification of Mn-doped ZnSe/ZnS core-shell quantum dots for application to the (blue diode + yellow emitter) white LED system. Band gap tuning for 460 nm excitation, inorganic shell growth and in-situ monitoring for enhanced efficiency, and analysis of thermal stability will are reported.

Info:

Periodical:

Materials Science Forum (Volumes 654-656)

Main Theme:

Edited by:

Jian-Feng Nie and Allan Morton

Pages:

1130-1133

DOI:

10.4028/www.scientific.net/MSF.654-656.1130

Citation:

C. J. Summers et al., "Nanocrystalline Phosphors for Lighting and Detection Applications", Materials Science Forum, Vols. 654-656, pp. 1130-1133, 2010

Online since:

June 2010

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Price:

$35.00

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