Electron transfer from a new chalcone dye to TiO2 nanoparticles: Synthesis, photophysics, and excited-state dynamics

A. Ramadan Ibrahim,Balqees S. Al-Saadi,John Husband,Ahmed H. Ismail,Younis Baqi,Osama K. Abou-Zied

Journal of Molecular Structure（2023）

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摘要

•A new chalcone dye is presented as a promising photosensitizer.•A COOH anchoring group enhances electron transfer (ET) to TiO2 nanoparticles.•ET was detected as a reduction in fluorescence intensity and lifetime.•Electron trapping on TiO2 surface causes slower electron-hole recombination.•Cyclic voltammograms indicate energetically favourable ET and dye regeneration.

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关键词

Chalcones,Nanoparticles,Electron transfer,Steady-state spectroscopy,Density functional theory,Ultrafast dynamics,Cyclic voltammetry

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