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Title: Composite materials with metal oxide attached to lead chalcogenide nanocrystal quantum dots with linkers

Patent ·
OSTI ID:1165445
; ; ;

Composite materials useful for devices such as photoelectrochemical solar cells include a substrate, a metal oxide film on the substrate, nanocrystalline quantum dots (NQDs) of lead sulfide, lead selenide, and lead telluride, and linkers that attach the NQDs to the metal oxide film. Suitable linkers preserve the 1s absorption peak of the NQDs. A suitable linker has a general structure A-B-C where A is a chemical group adapted for binding to a MO.sub.x and C is a chemical group adapted for binding to a NQD and B is a divalent, rigid, or semi-rigid organic spacer moiety. Other linkers that preserve the 1s absorption peak may also be used.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Number(s):
8,911,887
Application Number:
13/274,071
OSTI ID:
1165445
Resource Relation:
Patent File Date: 2011 Oct 14
Country of Publication:
United States
Language:
English

References (13)

Quantum energy storage or retrieval device patent December 2002
Hybrid organic-inorganic light emitting polymers patent March 2005
Water insoluble additive for improving conductivity of an ion exchange membrane patent October 2009
Nanoparticle Sensitized Nanostructured Solar Cells patent-application May 2008
Quantum Dot Solar Cell with Conjugated Bridge Molecule patent-application June 2009
Quantum Dot Solar Cell with Rigid Bridge Molecule patent-application June 2009
Quantum dot solar cell patent-application November 2009
Materials, Fabrication Equipment, and Methods for Stable, Sensitive Photodetectors and Image Sensors Made Therefrom patent-application January 2010
Process for Production of Surface-Coated Inorganic Particles patent-application October 2010
Cross-Linked Quantum Dots and Methods for Producing and Using the Same patent-application November 2011
Nanostructured Electroluminescent Device and Display patent-application January 2013
Assembly of CdS quantum dots onto mesoscopic TiO 2 films for quantum dot-sensitized solar cell applications journal January 2008
Quantum-Dot-Sensitized Solar Cells journal July 2010

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Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY