Abstract
In this paper, we show that the optical properties such as extinction coefficient, refractive index, optical conductivity and optical energy band gap of aminoazobenzene and pseudostilbene-type azobenzene polymers can be effectively manipulated by changing or adding various substituents in their polymeric system.We found that the absorption spectrum of aminoazobenzene polymer thin film is shifted to blue compared to pseudostilbene-type azobenzene polymer thin films. Therefore, the optical energy band gap for aminoazobenzene polymer thin film is higher than for pseudostilbene-type azobenzene polymers. We also noticed that the studied azo dyes polymer thin films exhibit high photoresponse proper for use in the optoelectronic applications.
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