Efeito da adição de pontos quânticos de carbono na fotoestabilidade do cristal líquido 8CB

Abstract

This work focused on investigating the thermo-optical properties of complex fluids, with an emphasis on the addition of carbon dots to the 8CB liquid crystal. Using nanoparticles synthesized from dansyl chloride (CD-DsCl) and methyl red dye (CD-MR), it was possible to analyze the changes in the system’s thermal, optical, and morphological properties. The CD-DsCl carbon dots promoted alterations in the texture and reduced the phase transition temperatures, showing promise for applications in liquid crystal doping. In contrast, the CD-MR carbon dots induced material degradation under light exposure, highlighting their unsuitability for this purpose. The results obtained reinforce the importance of further studies, using different concentrations and techniques, in order to contribute to the understanding of doped liquid crystal systems.