The effect of poly(vinyl alcohol) on the photophysical properties of pyronin dyes in aqueous solution: a spectroscopic study.
作者： Bahri Gür , Kadem Meral
DOI: 10.1016/J.SAA.2012.09.098
关键词: Photochemistry 、 Quantum yield 、 Vinyl alcohol 、 Fluorescence 、 Fluorescence spectroscopy 、 High loading 、 Fluorescence intensity 、 Aqueous solution 、 Chemistry 、 Absorption (chemistry)
摘要: The photophysical properties of pyronin B (PyB) and Y (PyY) in water poly(vinyl alcohol) (PVA) aqueous solutions were studied by using absorption, steady-state fluorescence time-resolved spectroscopy techniques at room temperature. spectroscopic dyes the concentrated PVA solution different than those found water. aggregation was prevented with ease while dye generally formed high concentration. decrease tendency caused an increase radiative transitions. addition into induced enhancement intensity compared to As a result, quantum yields improved loading. study revealed that decay all be single-exponential lifetime also higher
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