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Highly Efficient Light-Harvesting Ruthenium Sensitizer for Thin-Film Dye-Sensitized Solar Cells

ACS Nano · 2009 · Vol. 3(10) · pp. 3103–3109

Chia‐Yuan Chen✉(National Central University)Mingkui Wang(École Polytechnique Fédérale de Lausanne)Jheng-Ying Li(National Central University)Nuttapol Pootrakulchote(École Polytechnique Fédérale de Lausanne)Leila Alibabaei(École Polytechnique Fédérale de Lausanne)Cevey-ha Ngoc-le(École Polytechnique Fédérale de Lausanne)Jean-David Decoppet(École Polytechnique Fédérale de Lausanne)Jia-Hung Tsai(National Central University)Carole Grätzel(École Polytechnique Fédérale de Lausanne)Chun‐Guey Wu(National Central University)Shaik M. Zakeeruddin(École Polytechnique Fédérale de Lausanne)Michaël Grätzel(École Polytechnique Fédérale de Lausanne)

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Abstract

A high molar extinction coefficient heteroleptic ruthenium complex, incorporating an electron-rich hexylthio-terminal chain, has been synthesized and demonstrated as an efficient sensitizer for dye-sensitized solar cells. With this new sensitizer excellent power conversion efficiency is 11.5% and 4.7% obtained under an irradiation of full sunlight (air mass 1.5 global) in combination with a volatility electrolyte and solid state hole transporting material, respectively. The devices with low volatility electrolyte showed good stability under visible-light soaking at 60 degrees C during 1000 h of accelerated tests.

TiO2 Photocatalysis and Solar Cells Advanced Photocatalysis Techniques Polyoxometalates: Synthesis and ApplicationsRutheniumDye-sensitized solar cellElectrolyteMolar absorptivityMaterials scienceEnergy conversion efficiencyPhotochemistryIrradiationSunlightMolar mass

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