银纳米粒子近场中罗丹明染料到tio2基半导体薄膜电荷转移效率的距离依赖性

IF 3.1 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemical Physics Letters Pub Date : 2025-09-12 DOI:10.1016/j.cplett.2025.142425

G. Оmarova, N. Ibrayev, E. Seliverstova, Z. Koishybai, A. Sadykova

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引用次数: 0

摘要

研究了罗丹明染料到tio2基半导体薄膜的电荷转移效率与距离的关系，并考虑了等离子体纳米粒子core@shell （Ag@TiO2）对这一过程的影响。染料和半导体之间的距离用聚两性聚合物单层（~ 2 nm）来控制。染料的荧光强度表现出强烈的依赖于半导体薄膜的距离，并伴随着染料的电子激发态寿命的变化。在Ag@TiO2纳米颗粒的存在下，太阳能电池光电流的增长（增加了47%）证实了电荷转移的显著增强。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The distance dependence of charge transfer efficiency from a rhodamine dye to a TiO2-based semiconductor film in the near field of Ag nanoparticles

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The distance dependence of charge transfer efficiency from a rhodamine dye to a TiO2-based semiconductor film in the near field of Ag nanoparticles

The distance dependence of charge transfer efficiency from rhodamine dye to a TiO₂-based semiconductor film was studied, and the influence of plasmon core@shell nanoparticles (Ag@TiO₂) on this process is considered. The distance between the dye and the semiconductor was controlled using monolayers of polyampholyte (∼2 nm). The fluorescence intensity of the dye exhibits a strong dependence on the distance to semiconductor film, accompanied by changes in the lifetime of the electron-excited state of dye. In the presence of Ag@TiO₂ nanoparticles, the charge transfer was significantly enhanced that was confirmed by the growth of photocurrent of the solar cell (by 47 %).

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来源期刊

Chemical Physics Letters 化学-物理：原子、分子和化学物理

CiteScore

5.70

自引率

3.60%

发文量

798

审稿时长

33 days

期刊介绍： Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.