131032-67-2Relevant academic research and scientific papers
Second- and third-order nonlinearities of novel push-pull azobenzene polymers
El Ouazzani, Hasnaa,Iliopoulos, Konstantinos,Pranaitis, Mindaugas,Krupka, Oksana,Smokal, Vitaliy,Kolendo, Aleksey,Sahraoui, Bouchta
, p. 1944 - 1949 (2011)
In this work, the second- and third-order nonlinear optical response of spin-deposited thin films of three different push-pull side chain azobenzene polymers is investigated by the second- and third-harmonic Maker fringes techniques using 30 ps laser puls
Optimized molecular structures of guest-host system for highly efficient coatable polarizer
Chang, Jae Bok,Namgoong, Jin Woong,Sakong, Chun,Choi, Jun,Park, Su Hyun,Hwang, Byoung Har,Kim, Jae Pil
, p. 265 - 275 (2015)
Various dichroic dyes were synthesized and applied to two different host materials for the study of optimized molecular structures of guest-host system for the coatable polarizer using liquid crystalline polymers. The host material containing planar and linear mesogens had an advantage in exhibiting high orientation orders, but easily formed disclinations due to causing the strong intermolecular attraction between the guest and host molecules. The balance of intermolecular attraction and repulsion between the guest and host molecules is important to simultaneously achieve high orientations and uniform alignments without disclinations. The highest dichroic ratio of coatable polarizers was obtained when the π-conjugation lengths of guest and host molecules have an appropriate ratio. Also, the guest molecules with a long π-conjugation length improved the orientation of host molecules.
