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Issue 9, 2011
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Aligned TiO2 nanocolumnar layers prepared by PVD-GLAD for transparent dye sensitized solar cells

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Abstract

Transparent thin film electrodes made of vertically aligned nanocolumns of TiO2 with well-controlled oblique angles were grown by physical vapor deposition at glancing incidence (PVD-GLAD). For an electrode thickness of 500 nm, we report a 40% variation on solar cell efficiency (from 0.6% to 1.04%) when the deposition angle was modified between 60° and 85°. Transparent thicker films with higher surface area deposited at the optimal angle of 70° were grown with a zigzag morphology which confers high mechanical strength to the thin films. Using this topology, the application of an electrode thickness of 3 µm in a DSC resulted in a power conversion efficiency of 2.78% maintaining electrode transparency.

Graphical abstract: Aligned TiO2 nanocolumnar layers prepared by PVD-GLAD for transparent dye sensitized solar cells

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Article information


Submitted
27 Sep 2010
Accepted
30 Nov 2010
First published
10 Jan 2011

Energy Environ. Sci., 2011,4, 3426-3435
Article type
Paper

Aligned TiO2 nanocolumnar layers prepared by PVD-GLAD for transparent dye sensitized solar cells

L. González-García, I. González-Valls, M. Lira-Cantu, A. Barranco and A. R. González-Elipe, Energy Environ. Sci., 2011, 4, 3426
DOI: 10.1039/C0EE00489H

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