Synthesis, Characterization, Optical, Electrochemical and Current-Voltage Characteristics of Coumarin Dyes
作者:K. V. Basavarajappa、Y. Arthoba Nayaka、R. O. Yathisha、P. Manjunatha
DOI:10.1007/s10895-019-02436-7
日期:2019.9
A series of coumarin dyes having common acceptor and pi spacer with different donors were synthesized and characterized by spectroscopic techniques. The TiO2 nanoparticle has been synthesized by sol-gel method and characterized by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. Photophysical and electrochemical properties have been investigated. The band gap, molar
合成了一系列具有共同的受体和带有不同供体的π间隔基的香豆素染料,并通过光谱技术对其进行了表征。TiO 2通过溶胶-凝胶法合成了纳米粒子,并通过X射线衍射,扫描电子显微镜和能量色散光谱对其进行了表征。已经研究了光物理和电化学性质。计算了前沿分子轨道(FMO)的带隙,摩尔吸收系数和能量。结果表明,电子释放基团有助于调节带隙。通过密度泛函理论计算获得了FMO的几何优化和能量。计算的全局化学参数有助于理解合成染料分子的固有供体-受体特性。电流-电压特性的结果在照明条件下显示出良好的光电流响应。