Nanoscale ordering of planar octupolar molecules for nonlinear optics at higher temperatures.

ABSTRACT: We develop scenarios for orientational ordering of an in-plane system of small flat octupolar molecules at the low-concentration limit, aiming towards nonlinear-optical (NLO) applications at room temperatures. The octupoles interact with external electric poling fields and intermolecular interactions are neglected. Simple statistical-mechanics models are used to analyze the orientational order in the very weak poling limit, sufficient for retrieving the NLO signals owing to the high sensitivity of NLO detectors and measurement chains. Two scenarios are discussed. Firstly, the octupolar poling field is imparted by a system of point charges; the setup is subject to cell-related constraints imposed by mechanical strength and dielectric breakdown limit. The very weak octupolar order of benchma

SUBMITTER: Jarema M 

PROVIDER: S-EPMC7838211 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature