Low-indium content bilayer transparent conducting oxide thin films as effective anodes in organic photovoltaic cells

Jun Liu; Alexander W. Hains; Lian Wang; Tobin J. Marks

doi:10.1016/j.tsf.2009.10.005

Low-indium content bilayer transparent conducting oxide thin films as effective anodes in organic photovoltaic cells

Jun Liu, Alexander W. Hains, Lian Wang, Tobin J. Marks^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Bilayer In-doped CdO/Sn-doped In₂O₃ (CIO/ITO) transparent conducting oxide (TCO) thin films were prepared by depositing thin ITO films by ion-assisted deposition on CIO films grown by metal-organic chemical vapor deposition. The optical, electrical, and microstructural properties of these bilayer TCO films were investigated in detail. A low sheet resistance of ~ 4.9 Ω/□ is achieved for the CIO/ITO (170/40 nm) bilayers without annealing. With a significantly lower In content (20 vs. ~ 93 at.%) and a much higher conductivity (> 12,000 vs. 3000-5000 S/cm) than commercial ITO, these bilayer films were investigated as anodes in bulk-heterojunction organic photovoltaic (OPV) devices having a poly(2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene) + [6,6]-phenyl C₆₁ butyric acid methyl ester active layer. Device performance metrics in every way comparable to those of devices fabricated on commercial ITO are achieved, demonstrating that CIO/ITO bilayers are promising low-In content, highly conductive and transparent electrode candidates for OPV cells.

Original language	English (US)
Pages (from-to)	3694-3699
Number of pages	6
Journal	Thin Solid Films
Volume	518
Issue number	14
DOIs	https://doi.org/10.1016/j.tsf.2009.10.005
State	Published - May 3 2010

Funding

This research was supported by BP Solar and the Northwestern University MRSEC (NSF Grant DMR-0520513 ). The SIMS, XPS, and AFM work was performed in the Keck-II and NIFTI facility of NUANCE Center at Northwestern University. NUANCE is supported by the NSF-NSEC , NSF-MRSEC , Keck Foundation , the State of Illinois , and Northwestern University .

Keywords

Bilayer
Low-indium
Organic photovoltaics
Solar cells
Transparent conducting oxides

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.tsf.2009.10.005

Cite this

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title = "Low-indium content bilayer transparent conducting oxide thin films as effective anodes in organic photovoltaic cells",

abstract = "Bilayer In-doped CdO/Sn-doped In2O3 (CIO/ITO) transparent conducting oxide (TCO) thin films were prepared by depositing thin ITO films by ion-assisted deposition on CIO films grown by metal-organic chemical vapor deposition. The optical, electrical, and microstructural properties of these bilayer TCO films were investigated in detail. A low sheet resistance of ~ 4.9 Ω/□ is achieved for the CIO/ITO (170/40 nm) bilayers without annealing. With a significantly lower In content (20 vs. ~ 93 at.%) and a much higher conductivity (> 12,000 vs. 3000-5000 S/cm) than commercial ITO, these bilayer films were investigated as anodes in bulk-heterojunction organic photovoltaic (OPV) devices having a poly(2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene) + [6,6]-phenyl C61 butyric acid methyl ester active layer. Device performance metrics in every way comparable to those of devices fabricated on commercial ITO are achieved, demonstrating that CIO/ITO bilayers are promising low-In content, highly conductive and transparent electrode candidates for OPV cells.",

keywords = "Bilayer, Low-indium, Organic photovoltaics, Solar cells, Transparent conducting oxides",

author = "Jun Liu and Hains, {Alexander W.} and Lian Wang and Marks, {Tobin J.}",

note = "Funding Information: This research was supported by BP Solar and the Northwestern University MRSEC (NSF Grant DMR-0520513 ). The SIMS, XPS, and AFM work was performed in the Keck-II and NIFTI facility of NUANCE Center at Northwestern University. NUANCE is supported by the NSF-NSEC , NSF-MRSEC , Keck Foundation , the State of Illinois , and Northwestern University .",

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T1 - Low-indium content bilayer transparent conducting oxide thin films as effective anodes in organic photovoltaic cells

AU - Liu, Jun

AU - Hains, Alexander W.

AU - Wang, Lian

AU - Marks, Tobin J.

N1 - Funding Information: This research was supported by BP Solar and the Northwestern University MRSEC (NSF Grant DMR-0520513 ). The SIMS, XPS, and AFM work was performed in the Keck-II and NIFTI facility of NUANCE Center at Northwestern University. NUANCE is supported by the NSF-NSEC , NSF-MRSEC , Keck Foundation , the State of Illinois , and Northwestern University .

PY - 2010/5/3

Y1 - 2010/5/3

N2 - Bilayer In-doped CdO/Sn-doped In2O3 (CIO/ITO) transparent conducting oxide (TCO) thin films were prepared by depositing thin ITO films by ion-assisted deposition on CIO films grown by metal-organic chemical vapor deposition. The optical, electrical, and microstructural properties of these bilayer TCO films were investigated in detail. A low sheet resistance of ~ 4.9 Ω/□ is achieved for the CIO/ITO (170/40 nm) bilayers without annealing. With a significantly lower In content (20 vs. ~ 93 at.%) and a much higher conductivity (> 12,000 vs. 3000-5000 S/cm) than commercial ITO, these bilayer films were investigated as anodes in bulk-heterojunction organic photovoltaic (OPV) devices having a poly(2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene) + [6,6]-phenyl C61 butyric acid methyl ester active layer. Device performance metrics in every way comparable to those of devices fabricated on commercial ITO are achieved, demonstrating that CIO/ITO bilayers are promising low-In content, highly conductive and transparent electrode candidates for OPV cells.

AB - Bilayer In-doped CdO/Sn-doped In2O3 (CIO/ITO) transparent conducting oxide (TCO) thin films were prepared by depositing thin ITO films by ion-assisted deposition on CIO films grown by metal-organic chemical vapor deposition. The optical, electrical, and microstructural properties of these bilayer TCO films were investigated in detail. A low sheet resistance of ~ 4.9 Ω/□ is achieved for the CIO/ITO (170/40 nm) bilayers without annealing. With a significantly lower In content (20 vs. ~ 93 at.%) and a much higher conductivity (> 12,000 vs. 3000-5000 S/cm) than commercial ITO, these bilayer films were investigated as anodes in bulk-heterojunction organic photovoltaic (OPV) devices having a poly(2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene) + [6,6]-phenyl C61 butyric acid methyl ester active layer. Device performance metrics in every way comparable to those of devices fabricated on commercial ITO are achieved, demonstrating that CIO/ITO bilayers are promising low-In content, highly conductive and transparent electrode candidates for OPV cells.

KW - Bilayer

KW - Low-indium

KW - Organic photovoltaics

KW - Solar cells

KW - Transparent conducting oxides

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Low-indium content bilayer transparent conducting oxide thin films as effective anodes in organic photovoltaic cells

Abstract

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

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