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Title: Nanocluster-based white-light-emitting material employing surface tuning

Patent ·
OSTI ID:909713

A method for making a nanocrystal-based material capable of emitting light over a sufficiently broad spectral range to appear white. Surface-modifying ligands are used to shift and broaden the emission of semiconductor nanocrystals to produce nanoparticle-based materials that emit white light.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
7,235,190
Application Number:
10/933,069
OSTI ID:
909713
Country of Publication:
United States
Language:
English

References (13)

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Electronic Structure and Luminescence of 1.1- and 1.4-nm Silicon Nanocrystals:  Oxide Shell versus Hydrogen Passivation journal February 2003
Photochemistry of colloidal semiconductors. 20. Surface modification and stability of strong luminescing CdS particles journal September 1987
Full Color Emission from II-VI Semiconductor Quantum Dot-Polymer Composites journal July 2000
Synthesis and characterization of nearly monodisperse CdE (E = sulfur, selenium, tellurium) semiconductor nanocrystallites journal September 1993
Absorption and fluorescence behavior of redispersible cadmium sulfide colloids in various organic solvents journal September 1992
Hybrid organic–inorganic semiconductor-based light-emitting diodes journal October 1997
Highly Luminescent Monodisperse CdSe and CdSe/ZnS Nanocrystals Synthesized in a Hexadecylamine−Trioctylphosphine Oxide−Trioctylphospine Mixture journal April 2001
Size control and photoluminescence enhancement of CdS nanoparticles prepared via reverse micelle method journal September 2002
(CdSe)ZnS Core−Shell Quantum Dots: Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites journal November 1997
Spectral Properties of AOT-Protected CdS Nanoparticles:  Quantum Yield Enhancement by Photolysis journal February 2003
Tuning the performance of hybrid organic/inorganic quantum dot light-emitting devices journal September 2003
Energy Levels in Embedded Semiconductor Nanoparticles and Nanowires journal November 2001

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