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首页> 外文期刊>Physical chemistry chemical physics: PCCP >Dye sensitization of synthetic p-type diamond electrode
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Dye sensitization of synthetic p-type diamond electrode

机译:合成p型金刚石电极的染料敏化

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摘要

A synthetic semiconductive p-type diamond electrode was photosensitized by the Ru(bpy)_3~(2+) molecule in an electrolyte solution. The photoexcited molecule injects a hole into the valence band. However, under a certain potential, charge recombination occurred through interband states: the hole on the top of the valence band recombined with the photoreduced Ru(bpy)_3~(1+). The mechanism of this charge recombination was studied by measuring the transient photopotential and the intrinsic sub-band gap photoresponse of the electrode.
机译:通过Ru(bpy)_3〜(2+)分子在电解质溶液中对合成的半导体p型金刚石电极进行光敏。受光激发的分子向价带注入一个空穴。然而,在一定的电位下,电荷通过带间状态发生复合:价带顶部的空穴与光还原的Ru(bpy)_3〜(1+)结合。通过测量电极的瞬态光电势和本征子带隙光响应,研究了这种电荷复合的机理。

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