Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals
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.
- Research Organization:
- Vanderbilt Univ., Nashville, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG02-02ER45957
- Assignee:
- Vanderbilt University (Nashville, TN)
- Patent Number(s):
- 8,784,698
- Application Number:
- 13/115,001
- OSTI ID:
- 1149692
- Resource Relation:
- Patent File Date: 2011 May 24
- Country of Publication:
- United States
- Language:
- English
Similar Records
Broad-emission nanocrystals and methods of making and using same
Organo Luminescent semiconductor nanocrystal probes for biological applications and process for making and using such probes