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Issue 9, 2014
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Enhancement of photovoltaic efficiency by insertion of a polyoxometalate layer at the anode of an organic solar cell

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Abstract

In this article the Wells–Dawson polyoxometalate K6[P2W18O62] is grown as an interfacial layer between indium tin oxide and bulk heterojunction of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The structure of the POM layers depends on the thickness and shows a highly anisotropic surface organization. The films have been characterized by atomic force microscopy and X-ray photoelectron spectroscopy (XPS) to gain insight into their macroscopic organization and better understand their electronic properties. Then, they were put at the anodic interface of a P3HT : PCBM organic solar cell and characterized on an optical bench. The photovoltaic efficiency is discussed in terms of the benefit of the polyoxometalate at the anodic interface of an organic photovoltaic cell.

Graphical abstract: Enhancement of photovoltaic efficiency by insertion of a polyoxometalate layer at the anode of an organic solar cell

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Supplementary files

Article information


Submitted
11 Jul 2014
Accepted
12 Sep 2014
First published
15 Sep 2014

Inorg. Chem. Front., 2014,1, 682-688
Article type
Research Article
Author version available

Enhancement of photovoltaic efficiency by insertion of a polyoxometalate layer at the anode of an organic solar cell

M. Alaaeddine, Q. Zhu, D. Fichou, G. Izzet, J. E. Rault, N. Barrett, A. Proust and L. Tortech, Inorg. Chem. Front., 2014, 1, 682
DOI: 10.1039/C4QI00093E

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