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Title: Compositions and methods for the downconversion of light

Abstract

The present invention generally relates to composition and methods for downconverting light. In some embodiments, the composition and methods comprise an organic material, a nanocrystal, and a ligand capable of facilitating energy transfer between the organic material and the nanocrystal. In certain embodiments, the nanocrystal has a first excited energy state with an energy less than a triplet energy state of the organic material. The organic material, in some embodiments, may be aromatic and/or include one or more pi-conjugated carbon-carbon double bonds. In some cases, incident light may be absorbed by the organic material to produce two triplet excitons. The triplet excitons may then transfer to the nanocrystal via the ligand, where they can undergo recombination, resulting in the formation low energy photons.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771472
Patent Number(s):
10794771
Application Number:
15/045,011
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Classifications (CPCs):
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
SC0001088
Resource Type:
Patent
Resource Relation:
Patent File Date: 02/16/2016
Country of Publication:
United States
Language:
English

Citation Formats

Congreve, Daniel N., Thompson, Nicholas John, Wilson, Mark W. B., Wu, Mengfei, Baldo, Marc A., Bawendi, Moungi G., and Bulovic, Vladimir. Compositions and methods for the downconversion of light. United States: N. p., 2020. Web.
Congreve, Daniel N., Thompson, Nicholas John, Wilson, Mark W. B., Wu, Mengfei, Baldo, Marc A., Bawendi, Moungi G., & Bulovic, Vladimir. Compositions and methods for the downconversion of light. United States.
Congreve, Daniel N., Thompson, Nicholas John, Wilson, Mark W. B., Wu, Mengfei, Baldo, Marc A., Bawendi, Moungi G., and Bulovic, Vladimir. Tue . "Compositions and methods for the downconversion of light". United States. https://www.osti.gov/servlets/purl/1771472.
@article{osti_1771472,
title = {Compositions and methods for the downconversion of light},
author = {Congreve, Daniel N. and Thompson, Nicholas John and Wilson, Mark W. B. and Wu, Mengfei and Baldo, Marc A. and Bawendi, Moungi G. and Bulovic, Vladimir},
abstractNote = {The present invention generally relates to composition and methods for downconverting light. In some embodiments, the composition and methods comprise an organic material, a nanocrystal, and a ligand capable of facilitating energy transfer between the organic material and the nanocrystal. In certain embodiments, the nanocrystal has a first excited energy state with an energy less than a triplet energy state of the organic material. The organic material, in some embodiments, may be aromatic and/or include one or more pi-conjugated carbon-carbon double bonds. In some cases, incident light may be absorbed by the organic material to produce two triplet excitons. The triplet excitons may then transfer to the nanocrystal via the ligand, where they can undergo recombination, resulting in the formation low energy photons.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {10}
}

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