Title: Photoluminescent nanofiber composites, methods for fabrication, and related lighting devices

Abstract

A photoluminescent nanofiber composite includes a nanofiber substrate, first luminescent particles, and second luminescent particles. The first luminescent particles are supported by the nanofibers and span at least a portion of a substrate surface, as a layer on the substrate surface, or with some particles located in a bulk of the substrate, or both. The second luminescent particles are disposed on the substrate. The second luminescent particles may be disposed directly on the substrate surface or on the first luminescent particles. The second luminescent particles may be deposited in a pattern of deposition units. The first and second luminescent particles are configured for emitting light of different respective wavelengths in response to excitation by a light beam. One or more surface treatment coatings may be provided at different locations.

Inventors:

Guzan, Kimberly A.; Mills, Karmann C.; Han, Li; Davis, James Lynn; Hoertz, Paul G.

Issue Date:

2015-08-04

Research Org.:

RTI International, Durham, NC (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1207236

Patent Number(s):

9101036

Application Number:

13/817,896

Assignee:

Research Triangle Institute (Durham, NC)

Patent Classifications (CPCs):

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

D - TEXTILES D01 - NATURAL OR MAN-MADE THREADS OR FIBRES D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T428/2481 - including layer of mechanically interengaged strands, strand-portions or strand-like strips

D - TEXTILES D01 - NATURAL OR MAN-MADE THREADS OR FIBRES D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS

D01F1/06 - Dyes

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

H05B33/145 - {Arrangements of the electroluminescent material}
H05B33/14 - characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source}

D - TEXTILES D06 - TREATMENT OF TEXTILES OR THE LIKE D06P - DYEING OR PRINTING TEXTILES

D06P1/0012 - {Effecting dyeing to obtain luminescent or phosphorescent dyeings}

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

H05B33/20 - characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded

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DOE Contract Number:  

FC26-06NT42861

Resource Type:

Patent

Resource Relation:

Patent File Date: 2011 Aug 19

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY