Optical properties of metal phthalocyanines
Optical properties of metal phthalocyanines
复制标题
金属酞菁的光学性质
DOI：
10.1007/s10853-010-4476-6
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
N. Ravindra
中科院分区：
文献类型：
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作者：
Priyanka Singh;N. Ravindra
本文研究了五种金属酞菁的光学性质，钴、镍、铁、铜和锰在1.5- 4.1eV的能量（E）范围内进行了讨论。利用文献中这些材料的折射率（n）和消光系数（k）数据，计算了复介电常数（ε）的真实的（ε1）、虚部（ε2）和反射率（R）等相关光学性质。用Penn能隙（EP）解释了ε 2峰对应的能量。高频介电常数（ε∞）值对应于四种模型，即，用传统的洛仑兹模型、修正的洛仑兹模型、松弛的洛仑兹模型和对偶洛仑兹模型来确定EP。结果表明，传统模型和双Lorentz模型的EP值与R-E谱和ε2-E谱的能量峰平均值符合得很好。利用Wemple-DiDomenico模型确定了这些材料的振子能量（E0）和色散能（艾德）。（a）E0的计算值与Penn间隙EP、R-E谱和ε2-E谱的能量峰的平均值基本一致;（B）Ed 0的计算值与文献中CoPc和NiPc的计算值相当。
In this study, optical properties of phthalocyanines of five metals, i.e., cobalt, nickel, iron, copper, and manganese, have been discussed in the energy (E) range of 1.5–4.1 eV. Utilizing the available data of refractive index (n) and extinction coefficient (k) of these materials in the literature, the related optical properties such as the real (ε1), imaginary (ε2) parts of the complex dielectric constant (ε), and reflectivity (R) are calculated. Interpretations for the energies corresponding to the peaks in ε2are explained in terms of the Penn gap (EP). High-frequency dielectric constant (ε∞) values corresponding to four models, i.e., the conventional Lorentz model, modified Lorentz model, relaxed Lorentz model, and the dual Lorentz model are used to determineEP. It is found that theEPvalues corresponding to the conventional and dual Lorentz models are in good agreement with the average of energy peaks in theR-Eand the ε2-Espectra. The oscillator energy (E0) and the dispersion energy (Ed) of these materials have been determined utilizing the Wemple–DiDomenico model. The calculated values of (a)E0are generally in good agreement with the Penn gapEP, the average of the energy peaks in theR-Eand the ε2-Espectra and (b)Edare comparable to those in the literature for CoPc and NiPc.