Shabade Vasanti B, Mainak Amarsinh R, Pujari Sidram R
Department of Chemistry, D. B. F. Dayanand College of Arts and Science, Solapur, 413002, Maharashtra, India.
J Fluoresc. 2024 Oct 13. doi: 10.1007/s10895-024-04003-1.
Luminophors of α-Naphthol doped with varying concentrations of anthracene and perylene were prepared by conventional solid state reaction method to explore its fluorescence characteristics. The fluorescence spectra of bicomponent and tricomponent luminophors reveals the fluorescence excitation energy transfer (FRET) process. The prepared bi and tri component luminophors were excited at 290 nm which corresponds to host excitation wavelength. The weak violet fluorescence of host, α-Naphthol, gets quenched and give anthracene like emission in bicomponent luminophor systems. Further doping with second host, perylene, in anthracene containing α-Naphthol luminophors, red shifted emission was observed at 605 nm. The structural parameters, thermal stability and electrical properties of doped luminophors were studied by using X-ray diffraction, TGA-DSC and Cyclic Voltammetry respectively. The particle size of the prepared luminophors was confirmed by scanning electron microscopy (SEM).
采用传统的固态反应法制备了掺杂不同浓度蒽和苝的α-萘酚发光体，以探究其荧光特性。双组分和三组分发光体的荧光光谱揭示了荧光激发能量转移（FRET）过程。制备的双组分和三组分发光体在290nm处激发，该波长对应于主体激发波长。主体α-萘酚的弱紫色荧光被猝灭，在双组分发光体体系中产生类似蒽的发射。在含蒽的α-萘酚发光体中进一步掺杂第二主体苝，在605nm处观察到红移发射。分别采用X射线衍射、热重-差示扫描量热法和循环伏安法研究了掺杂发光体的结构参数、热稳定性和电学性质。通过扫描电子显微镜（SEM）确定了制备的发光体的粒径。
