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Title: Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals

Abstract

Disclosed are inorganic nanoparticles comprising a body comprising cadmium and/or zinc crystallized with selenium, sulfur, and/or tellurium; a multiplicity of phosphonic acid ligands comprising at least about 20% of the total surface ligand coverage; wherein the nanocrystal is capable of absorbing energy from a first electromagnetic region and capable of emitting light in a second electromagnetic region, wherein the maximum absorbance wavelength of the first electromagnetic region is different from the maximum emission wavelength of the second electromagnetic region, thereby providing a Stokes shift of at least about 20 nm, wherein the second electromagnetic region comprises an at least about 100 nm wide band of wavelengths, and wherein the nanoparticle exhibits has a quantum yield of at least about 10%. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Inventors:
; ;
Publication Date:
Research Org.:
Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1149692
Patent Number(s):
8,784,698
Application Number:
13/115,001
Assignee:
Vanderbilt University (Nashville, TN) CHO
DOE Contract Number:  
FG02-02ER45957
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 May 24
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Schreuder, Michael A., McBride, James R., and Rosenthal, Sandra J. Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals. United States: N. p., 2014. Web.
Schreuder, Michael A., McBride, James R., & Rosenthal, Sandra J. Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals. United States.
Schreuder, Michael A., McBride, James R., and Rosenthal, Sandra J. Tue . "Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals". United States. doi:. https://www.osti.gov/servlets/purl/1149692.
@article{osti_1149692,
title = {Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals},
author = {Schreuder, Michael A. and McBride, James R. and Rosenthal, Sandra J.},
abstractNote = {Disclosed are inorganic nanoparticles comprising a body comprising cadmium and/or zinc crystallized with selenium, sulfur, and/or tellurium; a multiplicity of phosphonic acid ligands comprising at least about 20% of the total surface ligand coverage; wherein the nanocrystal is capable of absorbing energy from a first electromagnetic region and capable of emitting light in a second electromagnetic region, wherein the maximum absorbance wavelength of the first electromagnetic region is different from the maximum emission wavelength of the second electromagnetic region, thereby providing a Stokes shift of at least about 20 nm, wherein the second electromagnetic region comprises an at least about 100 nm wide band of wavelengths, and wherein the nanoparticle exhibits has a quantum yield of at least about 10%. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 22 00:00:00 EDT 2014},
month = {Tue Jul 22 00:00:00 EDT 2014}
}

Patent:

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