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Title: Method of fabricating an optoelectronic device having a bulk heterojunction

Abstract

A method of fabricating an organic optoelectronic device having a bulk heterojunction comprises the steps of: depositing a first layer over a first electrode by organic vapor phase deposition, wherein the first layer comprises a first organic small molecule material; depositing a second layer on the first layer such that the second layer is in physical contact with the first layer, wherein the interface of the second layer on the first layer forms a bulk heterojunction; and depositing a second electrode over the second layer to form the optoelectronic device. In another embodiment, a first layer having protrusions is deposited over the first electrode, wherein the first layer comprises a first organic small molecule material. For example, when the first layer is an electron donor layer, the first electrode is an anode, the second layer is an electron acceptor layer, and the second electrode is a cathode. As a further example, when the first layer is an electron acceptor layer, the first electrode is a cathode, the second layer is an electron donor layer, and the second electrode is an anode.

Inventors:
 [1];  [1];  [1]
  1. Princeton, NJ
Issue Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
984975
Patent Number(s):
7419846
Application Number:
10/824,288
Assignee:
The Trustees of Princeton University (Princeton, NJ)
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
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
AC36-98GO10337
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Shtein, Max, Yang, Fan, and Forrest, Stephen R. Method of fabricating an optoelectronic device having a bulk heterojunction. United States: N. p., 2008. Web.
Shtein, Max, Yang, Fan, & Forrest, Stephen R. Method of fabricating an optoelectronic device having a bulk heterojunction. United States.
Shtein, Max, Yang, Fan, and Forrest, Stephen R. Tue . "Method of fabricating an optoelectronic device having a bulk heterojunction". United States. https://www.osti.gov/servlets/purl/984975.
@article{osti_984975,
title = {Method of fabricating an optoelectronic device having a bulk heterojunction},
author = {Shtein, Max and Yang, Fan and Forrest, Stephen R},
abstractNote = {A method of fabricating an organic optoelectronic device having a bulk heterojunction comprises the steps of: depositing a first layer over a first electrode by organic vapor phase deposition, wherein the first layer comprises a first organic small molecule material; depositing a second layer on the first layer such that the second layer is in physical contact with the first layer, wherein the interface of the second layer on the first layer forms a bulk heterojunction; and depositing a second electrode over the second layer to form the optoelectronic device. In another embodiment, a first layer having protrusions is deposited over the first electrode, wherein the first layer comprises a first organic small molecule material. For example, when the first layer is an electron donor layer, the first electrode is an anode, the second layer is an electron acceptor layer, and the second electrode is a cathode. As a further example, when the first layer is an electron acceptor layer, the first electrode is a cathode, the second layer is an electron donor layer, and the second electrode is an anode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {9}
}

Works referenced in this record:

Effects of Postproduction Treatment on Plastic Solar Cells
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Efficient bulk heterojunction photovoltaic cells using small-molecular-weight organic thin films
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Small molecular weight organic thin-film photodetectors and solar cells
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Efficient photon harvesting at high optical intensities in ultrathin organic double-heterostructure photovoltaic diodes
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Novel photovoltaic devices based on donor-acceptor molecular and conducting polymer systems
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Polymer Photovoltaic Cells: Enhanced Efficiencies via a Network of Internal Donor-Acceptor Heterojunctions
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Preparation of organic bulk heterojunction photovoltaic cells by evaporative spray deposition from ultradilute solution
journal, March 2004


CuPc/C 60 Solar Cells–Influence of the Indium Tin Oxide Substrate and Device Architecture on the Solar Cell Performance
journal, April 2004