Organic photovoltaics using thin gold film as an alternative anode to indium tin oxide

Haldar, Amrita, Yambem, Soniya D., Liao, Kang-Shyang, Alley, Nigel J., Dillon, Eoghan P., Barron, Andrew R. and Curran, Seamus A. (2011) Organic photovoltaics using thin gold film as an alternative anode to indium tin oxide. Thin Solid Films, 519 18: 6169-6173. doi:10.1016/j.tsf.2011.04.071

Author Haldar, Amrita
Yambem, Soniya D.
Liao, Kang-Shyang
Alley, Nigel J.
Dillon, Eoghan P.
Barron, Andrew R.
Curran, Seamus A.
Title Organic photovoltaics using thin gold film as an alternative anode to indium tin oxide
Journal name Thin Solid Films   Check publisher's open access policy
ISSN 0040-6090
Publication date 2011-07-01
Year available 2011
Sub-type Article (original research)
DOI 10.1016/j.tsf.2011.04.071
Open Access Status
Volume 519
Issue 18
Start page 6169
End page 6173
Total pages 5
Place of publication Lausanne, Switzerland
Publisher Elsevier S.A.
Collection year 2011
Language eng
Subject 2504 Electronic, Optical and Magnetic Materials
2505 Materials Chemistry
2506 Metals and Alloys
2508 Surfaces, Coatings and Films
3110 Surfaces and Interfaces
Abstract Indium Tin Oxide (ITO) is the most commonly used anode as a transparent electrode and more recently as an anode for organic photovoltaics (OPVs). However, there are significant drawbacks in using ITO which include high material costs, mechanical instability including brittleness and poor electrical properties which limit its use in low-cost flexible devices. We present initial results of poly(3-hexylthiophene): phenyl-C61-butyric acid methyl ester OPVs showing that an efficiency of 1.9% (short-circuit current 7.01 mA/cm2, open-circuit voltage 0.55 V, fill factor 0.49) can be attained using an ultra thin film of gold coated glass as the device anode. The initial I-V characteristics demonstrate that using high work function metals when the thin film is kept ultra thin can be used as a replacement to ITO due to their greater stability and better morphological control.
Keyword Bulk hetero junction
Photo voltage
Solar cell
Work function
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
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