Published in

Royal Society of Chemistry, Energy & Environmental Science, 9(4), p. 3426

DOI: 10.1039/c0ee00489h

Links

Tools

Export citation

Search in Google Scholar

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

This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

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 degrees and 85 degrees. Transparent thicker films with higher surface area deposited at the optimal angle of 70 degrees 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 mu m in a DSC resulted in a power conversion efficiency of 2.78% maintaining electrode transparency.