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Issue 13, 2011
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Dendron growth from vertically aligned single-walled carbon nanotube thin layer arrays for photovoltaic devices

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Abstract

Single-walled carbon nanotube arrays attached to conductive transparent electrodes have previously shown promise for use in photovoltaic devices, whilst still retaining light transmission. Here, chemical modification of these thin (<200 nm) arrays with PAMAM-type dendrons has been undertaken to enhance the photoresponse of these devices. The effect of modification on the electrode was measured by differential pulse voltammetry to detect the dendrons, and the effect on the nanotubes was measured by Raman spectroscopy. Solar simulator illumination of the cells was performed to measure the effect of the nanotube modification on the cell power, and determine the optimal modification. Electrochemical impedance spectroscopy was also used to investigate the equivalent electronic circuit elements of the cells. The optimal dendron modification occurred with the second generation (G-2.0), which gave a 70% increase in power over the unmodified nanotube array.

Graphical abstract: Dendron growth from vertically aligned single-walled carbon nanotube thin layer arrays for photovoltaic devices

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Publication details

The article was received on 01 Dec 2010, accepted on 26 Jan 2011 and first published on 23 Feb 2011


Article type: Paper
DOI: 10.1039/C0CP02740E
Citation: Phys. Chem. Chem. Phys., 2011,13, 6059-6064
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    Dendron growth from vertically aligned single-walled carbon nanotube thin layer arrays for photovoltaic devices

    M. A. Bissett, I. Köper, J. S. Quinton and J. G. Shapter, Phys. Chem. Chem. Phys., 2011, 13, 6059
    DOI: 10.1039/C0CP02740E

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