Photoactive screen-printed pyrite anodes for electrochemical photovoltaic cells

Solar Cells Pub Date : 1991-03-01 DOI:10.1016/0379-6787(91)90016-I

V. Antonucci, A.S. Arico', N. Giordano, P.L. Antonucci, U. Russo, D.L. Cocke, F. Crea

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引用次数: 42

Abstract

The activation treatments necessary to produce photoactive screen-printed pyrite electrodes for photoelectrochemical applications are described. In particular, air (340 °C), hydrogen (200 °C) and air-hydrogen (340-200 °C) treatments have been selected. Surface and bulk characterization of the electrodes have been carried out by X-ray photoelectron spectroscopy, X-ray diffraction and Mössbauer spectroscopy. Diffuse reflectance spectroscopy and photoelectrochemical tests in I⁻/I₃⁻ solutions allowed us to ascertain the optical absorption and solar energy conversion properties of the differently activated samples. The best performing electrode is the air-hydrogen activated electrode (η = 5.52%) which shows an optimal combination of the optical absorption characteristics and semiconductor-electrolyte charge transfer properties. The results have been discussed on the basis of the electronic structure of the compounds involved in the interfacial chemistry.

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电化学光伏电池用光敏丝网印刷黄铁矿阳极

描述了生产用于光电化学应用的光活性丝网印刷黄铁矿电极所需的活化处理。特别是空气(340°C)、氢(200°C)和空气-氢(340-200°C)处理被选择。通过x射线光电子能谱、x射线衍射和Mössbauer能谱对电极的表面和体进行了表征。在I - /I3 -溶液中的漫反射光谱和光电化学测试使我们能够确定不同活化样品的光吸收和太阳能转换特性。空气-氢活化电极(η = 5.52%)表现出最佳的光学吸收特性和半导体-电解质电荷转移特性。从参与界面化学的化合物的电子结构出发，对结果进行了讨论。

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Solar Cells

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