3D Photoelectrode for Dye Solar Cells Realized by Laser Micromachining of Photosensitive Glass

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• 作者：Michele Manca ; Szabolcs Beke ; Luisa De Marco ; Paola Pareo ; Antonio Qualtieri ; Alessandro Cannavale ; Fernando Brandi ; Giuseppe Gigli
• 刊名：Journal of Physical Chemistry C
• 出版年：2014
• 出版时间：July 31, 2014
• 年：2014
• 卷：118
• 期：30
• 页码：17100-17107
• 全文大小：621K
• ISSN：1932-7455

文摘

An explorative dye solar cell architecture based on the implementation of a 3D micropatterned photoelectrode is disclosed here. An array of conical micropillars has been realized by laser micromachining of photosensitive glass which has been advantageously used as a substrate for deposition of a thin transparent conductive layer and a thick mesoporous TiO₂ electrode. A significantly higher photocurrent density has been detected as an effect of the extended overall absorbing area of the micropatterned photoelectrode with respect to a conventional 2D reference photoelectrode. This enhancement can also be partially imputable to a not negligible 鈥渨aveguide effect鈥?occurring within the glass micropillars.