Influence of alignment layers on crystal growth of polymer-stabilized blue phase liquid crystals

Po Ju Chen, Michael Chen, Shih Ya Ni, Hung Shan Chen, Yi-Hsin Lin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The feature that devices based on blue phase liquid crystals (BPLCs) is free of alignment layers. However, the alignment layers could affect the morphologies of BPLC-devices as well as the electro-optical properties. In this paper, we investigate the influence of alignment layers to crystal growth of polymer-stabilized blue phase liquid crystals (PS-BPLCs). Without alignment layer, PS-BPLCs experiences both homogeneous nucleation and heterogeneous nucleation, and the morphology appears in random crystal orientations. On the contrary, when the surfaces coated with alignment layers, a heterogeneous nucleation dominates during the crystal growth process. We further proposed a possible mechanism for crystal growth under different surface condition. This study provides an alternative method to control crystal growth of PS-BPLCs, which is for facilitating many PS-BPLCs based photonic devices.

Original languageEnglish
Pages (from-to)1003-1010
Number of pages8
JournalOptical Materials Express
Volume6
Issue number4
DOIs
StatePublished - 1 Apr 2016

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