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Title: Efficient Polymer Solar Cells Fabricated on Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)-Etched Old Indium Tin Oxide Substrates

Abstract

In organic electronic devices, indium tin oxide (ITO) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) are the most common transparent electrode and anodic buffer layer materials, respectively. A widespread concern is that PEDOT:PSS is acidic and etches ITO. We show that this issue is not serious: only a few nanometers of ITO are etched in typical device processing conditions and storage thereafter; conductivity losses are affordable; and optical transmission gains further offset these losses. Organic photovoltaic (OPV) devices fabricated on old ITO (with PEDOT:PSS history) were similar or higher in efficiency than devices on fresh ITO. Poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7) devices on old ITO showed efficiencies up to 9.24% compared to 8.72% efficient devices on fresh ITO. This reusability of ITO can be impactful for economics of organic electronics because ITO accounts for almost 90% of energy embedded in devices, such as OPVs.

Authors:
 [1];  [2];  [2]
  1. Mansoura University
  2. Ames Laboratory
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1163925
Report Number(s):
IS-J 8436
Journal ID: ISSN 1944-8244
DOE Contract Number:  
DE-AC02-07CH11358
Resource Type:
Journal Article
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 6; Journal Issue: 15; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; indium tin oxide; PEDOT:PSS; etching; polymer solar cells; transparent electrode

Citation Formats

Elshobaki, Moneim, Anderegg, James, and Chaudhary, Sumit. Efficient Polymer Solar Cells Fabricated on Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)-Etched Old Indium Tin Oxide Substrates. United States: N. p., 2014. Web. doi:10.1021/am5037884.
Elshobaki, Moneim, Anderegg, James, & Chaudhary, Sumit. Efficient Polymer Solar Cells Fabricated on Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)-Etched Old Indium Tin Oxide Substrates. United States. https://doi.org/10.1021/am5037884
Elshobaki, Moneim, Anderegg, James, and Chaudhary, Sumit. 2014. "Efficient Polymer Solar Cells Fabricated on Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)-Etched Old Indium Tin Oxide Substrates". United States. https://doi.org/10.1021/am5037884.
@article{osti_1163925,
title = {Efficient Polymer Solar Cells Fabricated on Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)-Etched Old Indium Tin Oxide Substrates},
author = {Elshobaki, Moneim and Anderegg, James and Chaudhary, Sumit},
abstractNote = {In organic electronic devices, indium tin oxide (ITO) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) are the most common transparent electrode and anodic buffer layer materials, respectively. A widespread concern is that PEDOT:PSS is acidic and etches ITO. We show that this issue is not serious: only a few nanometers of ITO are etched in typical device processing conditions and storage thereafter; conductivity losses are affordable; and optical transmission gains further offset these losses. Organic photovoltaic (OPV) devices fabricated on old ITO (with PEDOT:PSS history) were similar or higher in efficiency than devices on fresh ITO. Poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7) devices on old ITO showed efficiencies up to 9.24% compared to 8.72% efficient devices on fresh ITO. This reusability of ITO can be impactful for economics of organic electronics because ITO accounts for almost 90% of energy embedded in devices, such as OPVs.},
doi = {10.1021/am5037884},
url = {https://www.osti.gov/biblio/1163925}, journal = {ACS Applied Materials and Interfaces},
issn = {1944-8244},
number = 15,
volume = 6,
place = {United States},
year = {Wed Aug 13 00:00:00 EDT 2014},
month = {Wed Aug 13 00:00:00 EDT 2014}
}