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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
Publication Date:
Research Org.:
Voxtel, Inc. (Beaverton, OR)
Sponsoring Org.:
USDOE
OSTI Identifier:
1026518
Patent Number(s):
7,994,421
Application Number:
12/290,660
Assignee:
Voxtel, Inc. (Beaverton, OR) OSTI
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}
}

Patent:

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