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

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:
 [1];  [2];  [3]
  1. Portland, OR
  2. Philomath, OR
  3. Albany, OR
Issue Date:
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):
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
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
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.
Williams, George M, Schut, David M, & Stonas, Andreas. Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same. United States.
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.
@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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