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This is a Experimental Study study (also classified as: Quantitative Study).

October 16, 2025MaterialsOpen Access

Both Benzannulation and Heteroatom-Controlled Photophysical Properties in Donor–π–Acceptor Ionic Dyes: A Combined Experimental and Theoretical Study

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This combined experimental and theoretical study shows variations in photophysical properties by modifying heteroatoms and benzannulation.

Substantial hypsochromic shifts in absorption and emission bands occur with heteroatom substitutions.
Benzannulation significantly enhances charge transfer while preserving emission characteristics.
The study employs time-resolved fluorescence spectroscopy to analyze emission dynamics in varying solvents.
Results suggest materials can be designed with adjustable photophysical properties for applications in opto-electronics.

Krawczyk et al. (2025) studied this question.

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This combined experimental and theoretical study shows variations in photophysical properties by modifying heteroatoms and benzannulation.