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

Abstract

A method of fabricating an optoelectronic device comprises: depositing a first layer having protrusions over a first electrode, in which 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; in which the smallest lateral dimension of the protrusions are between 1 to 5 times the exciton diffusion length of the first organic small molecule material; and depositing a second electrode over the second layer to form the optoelectronic device. A method of fabricating an organic optoelectronic device having a bulk heterojunction is also provided and comprises: depositing a first layer with protrusions over an electrode by organic vapor phase deposition; depositing a second layer on the first layer where the interface of the first and second layers forms a bulk heterojunction; and depositing another electrode over the second layer.

Inventors:
 [1];  [2];  [2]
  1. Ann Arbor, MI
  2. Princeton, NJ
Issue Date:
Research Org.:
Midwest Research Institute, Kansas City, MO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
985396
Patent Number(s):
7435617
Application Number:
10/999,716
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:  
AC36-99GO10337
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/985396.
@article{osti_985396,
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 optoelectronic device comprises: depositing a first layer having protrusions over a first electrode, in which 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; in which the smallest lateral dimension of the protrusions are between 1 to 5 times the exciton diffusion length of the first organic small molecule material; and depositing a second electrode over the second layer to form the optoelectronic device. A method of fabricating an organic optoelectronic device having a bulk heterojunction is also provided and comprises: depositing a first layer with protrusions over an electrode by organic vapor phase deposition; depositing a second layer on the first layer where the interface of the first and second layers forms a bulk heterojunction; and depositing another electrode over the second layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {10}
}

Works referenced in this record:

Effects of Postproduction Treatment on Plastic Solar Cells
journal, January 2003


Efficient bulk heterojunction photovoltaic cells using small-molecular-weight organic thin films
journal, September 2003


Small molecular weight organic thin-film photodetectors and solar cells
journal, April 2003


Efficient photon harvesting at high optical intensities in ultrathin organic double-heterostructure photovoltaic diodes
journal, May 2000


Novel photovoltaic devices based on donor-acceptor molecular and conducting polymer systems
journal, January 1997


Polymer Photovoltaic Cells: Enhanced Efficiencies via a Network of Internal Donor-Acceptor Heterojunctions
journal, December 1995


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