Optical properties of metal phthalocyanines

Document Type

Article

Publication Date

8-1-2010

Abstract

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 (e1), imaginary (e2) parts of the complex dielectric constant (e), and reflectivity (R) are calculated. Interpretations for the energies corresponding to the peaks in e2 are explained in terms of the Penn gap (EP). High-frequency dielectric constant (e?) 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 determine EP. It is found that the EP values corresponding to the conventional and dual Lorentz models are in good agreement with the average of energy peaks in the R-E and the e2-E spectra. 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) E0 are generally in good agreement with the Penn gap EP, the average of the energy peaks in the R-E and the e2-E spectra and (b) Ed are comparable to those in the literature for CoPc and NiPc. © 2010 Springer Science+Business Media, LLC.

Identifier

77954863615 (Scopus)

Publication Title

Journal of Materials Science

External Full Text Location

https://doi.org/10.1007/s10853-010-4476-6

e-ISSN

15734803

ISSN

00222461

First Page

4013

Last Page

4020

Issue

15

Volume

45

This document is currently not available here.

Share

COinS