کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
29082 44118 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of electron donors on the performance of plasmon-induced photovoltaic cell
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Effects of electron donors on the performance of plasmon-induced photovoltaic cell
چکیده انگلیسی

In this paper, charge separation of Au–TiO2 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−, Fe2+, 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 Fe2+, 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: Fe2+ > ferrocenecarboxylic acid > [Fe(CN)6]4−.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 199, Issues 2–3, 25 September 2008, Pages 224–229
نویسندگان
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