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Effects of Electron Donors on the Performance of Plasmon-induced Photovoltaic Cell by Yang Tian; Xiting Wang; Da Zhang; Xiu Shi; Shilong Wang is a Materials Science article available to read on EtoBox.

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In this paper, charge separation of Au-TiO 2 nanocomposites under visible light irradiation is investigated by transient absorption spectroscopy (TAS), as well as steady-state absorbance studies. The effects of electron donors on the performance of plasmon-induced photovoltaic cell are studied by employing three kinds of donors: [Fe(CN) 6 ] 4-, Fe 2+ , and ferrocenecarboxylic acid, since the apparent formal potential of [Fe(CN) 6 ] 4-and ferrocenecarboxylic acid is more negative and more positive than that of Fe 2+ , respectively, providing the opportunity to determine the influence of donors on the open-circuit photovoltage and short-circuit photocurrent. The experimental results indicate that both the open-circuit photovoltage and the short-circuit photocurrent are not simply dependent on the apparent formal potential of the donors. In addition, transient absorbance measurements show that the regeneration rates of the oxidized gold nanoparticles decreases in the order: Fe 2+ > ferrocenecarboxylic acid > [Fe(CN) 6 ] 4-.

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Author

Yang Tian; Xiting Wang; Da Zhang; Xiu Shi; Shilong Wang

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1010-6030)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)