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Investigation of concentration depended optical properties of PDCLC solution

AnitaKanwar, PriteeMhatre

This paper reports result obtained by analysis of UV-Visible absorption spectra of Polymer Dispersed Cholesteric Liquid Crystal (PDCLCs) solution. The PDCLC solutions of different concentration were prepared using Methyl Methacrylate (MMA) and Cholesteryl Pelargonate (CP). We know that pure CP shows high degree of absorption and MMA transmit almost all the wavelengths at room temperature in the visible range. We investigated PDCLC solution obtained using varying concentration of CP in the polymer solution. We observed that the amount of absorption varies considerably with the concentration. We were able to make a combination wherein the absorption became negligible for the visible range which otherwise for other concentration was very high. The negligible absorption in the visible range of electromagnetic spectra is very useful property in optical devices and in many other applications.