Controlled electrochromic effect of liquid crystal cell with j-aggregates
DOI:
https://doi.org/10.31548/energiya5(75).2024.093Abstract
Organic dye molecules dissolved in the liquid crystal (LC) cell were studied by spectroscopic and optical observations. It was shown that the LC cell is a right matrix for organic dye molecules association into submicron size particles (J-aggregates). Nematic liquid crystal matrix arranges J-aggregates in isomorphic way to LC molecules orientation. External electric voltage of higher frequency, applied to LC cell, directs J-aggregate’s chains along applied field and perpendicularly to cell’s surface. External electric voltage of lower frequency destroys J-aggregates to monomers.
Key words: nano-size organic dye particles, J-aggregates involved in liquid crystal matrix, association of dye molecules, controlled association and dissociation
References
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Blinov, L. M. (1978). Elektro- i magnitooptika zhidkikh kristallov [Electro and Magnetic Optics of Liquid Crystals]. Moskow: Nauka, 384.
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