Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same

Williams, George M; Schut, David M; Stonas, Andreas

Title: Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same

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Abstract

A photovoltaic device has nanoparticles sandwiched between a conductive substrate and a charge selective transport layer. Each of the nanoparticles has a ligand shell attached to the nanoparticle core. A first type of ligand is electron rich and attached to one hemisphere of the nanoparticle core, while a second type of ligand is electron poor and attached to an opposite hemisphere of the core. Consequently, the ligand shell induces an electric field within the nanoparticle, enhancing the photovoltaic effect. The arrangement of ligands types on different sides of the nanoparticle is obtained by a process involving ligand substitution after adhering the nanoparticles to the conductive substrate.

Inventors:

Williams, George M ^[1]; Schut, David M ^[2]; Stonas, Andreas ^[3]

Portland, OR
Philomath, OR
Albany, OR

Issue Date:: 2011-08-09

Research Org.:: Voxtel, Inc. (Beaverton, OR)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1026518

Patent Number(s):: 7994421

Application Number:: 12/290,660

Assignee:: Voxtel, Inc. (Beaverton, OR)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L31/0352 - characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
H01L31/035281 - {Shape of the body}
H01L31/0392 - including thin films deposited on metallic or insulating substrates {
H01L31/03925 - {including AIIBVI compound materials, e.g. CdTe, CdS}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E10/50 - Photovoltaic [PV] energy

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S977/773 - Nanoparticle, i.e. structure having three dimensions of 100 nm or less
Y10S977/778 - within specified host or matrix material, e.g. nanocomposite films
Y10S977/813 - Of specified inorganic semiconductor composition, e.g. periodic table group IV-VI compositions

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DOE Contract Number:: PS36-07GO97025

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY

Citation Formats


                    Williams, George M, Schut, David M, and Stonas, Andreas. Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same.  United States: N. p., 2011. 
        Web.

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                    Williams, George M, Schut, David M, & Stonas, Andreas. Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same.  United States.

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                    Williams, George M, Schut, David M, and Stonas, Andreas. Tue .  
        "Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same".  United States.  https://www.osti.gov/servlets/purl/1026518.

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@article{osti_1026518,

  title        = {Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same},

  author       = {Williams, George M and Schut, David M and Stonas, Andreas},

  abstractNote = {A photovoltaic device has nanoparticles sandwiched between a conductive substrate and a charge selective transport layer. Each of the nanoparticles has a ligand shell attached to the nanoparticle core. A first type of ligand is electron rich and attached to one hemisphere of the nanoparticle core, while a second type of ligand is electron poor and attached to an opposite hemisphere of the core. Consequently, the ligand shell induces an electric field within the nanoparticle, enhancing the photovoltaic effect. The arrangement of ligands types on different sides of the nanoparticle is obtained by a process involving ligand substitution after adhering the nanoparticles to the conductive substrate.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2011},

  month        = {8}

}

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