Temperature effect on spectral characters and dipole moment in short-lived excited singlet S1 state of 3HBI-7D-2HChromen-2-one laser dye in non-associative and highly viscous glycerol solvent

被引：3

作者：

Kumar, Anil ^{[1
,2
]}

Renuka, C. G. ^{[3
]}

机构：

[1] Govt First Grade Coll, Dept Phys, Sindhanur 584128, India

[2] Shri Siddeshwar Govt First Grade Coll, PG Studies & Dept Phys, Nargund 582207, India

[3] Bangalore Univ, Dept Phys, Bengaluru 560065, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2024年 / 1306卷

关键词：

Fluorescence; Quenching; Relative intensities; Decay rate parameters; Thermochromic shifts; THERMOCHROMIC SHIFTS; FLUORESCENCE-SPECTRA; S-1; STATE; PHOTOPHYSICAL PROPERTIES; ELECTRONIC-ABSORPTION; NONPOLAR;

D O I：

10.1016/j.molstruc.2024.137819

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Steady state method is employed to study the effect of temperature on the absorption and emission characteristics of 3-(1H-benzo[d]imidazol-2-yl)-7-(diethylamino)-2H-chromen-2-one(3HBI-7D-2HChromen-2-one) laser dye in glycerol solvent. Temperature induces thermal effect on maxima absorption, emission wavelength, fluorescence intensity etc. Radiative and non-radiative transition probabilities mechanism, fluorescence lifetime, frequency assisted parameters decay rate constants, and activation energy is estimated. Advance thermochromic shift method is adopted to determine the ground and excited state dipole moments.

引用

页数：6