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

Haldar, A., Yambem, S. D., Liao, K. S., Alley, N. J., Dillon, E. P., Barron, A. R., & Curran, S. A. (2011) Organic photovoltaics using thin gold film as an alternative anode to indium tin oxide. Thin Solid Films, 519(18), pp. 6169-6173.

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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.

Impact and interest:

7 citations in Scopus
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9 citations in Web of Science®

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ID Code: 86730
Item Type: Journal Article
Refereed: Yes
Keywords: Bulk hetero-junction, Gold, Photo-voltage, Solar cell, Work-function, Alternative anodes, Fill factor, Flexible device, Gold coated glass, High-work-function metal, Indium tin oxide, IV characteristics, Material cost, Mechanical instabilities, Methyl esters, Morphological control, Organic photovoltaics, Poly (3-hexylthiophene), Thin gold film, Transparent electrode, Ultra-thin, Butyric acid, Electric properties, Fatty acids, Fracture mechanics, Gold coatings, Indium compounds, Mechanical properties, Open circuit voltage, Photovoltaic effects, Thin films, Tin, Tin oxides, Indium
DOI: 10.1016/j.tsf.2011.04.071
ISSN: 00406090 (ISSN)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Elsevier
Deposited On: 20 Aug 2015 04:32
Last Modified: 21 Aug 2015 04:12

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