Nanoimprinting-lithography-induced self-aligned liquid crystals for novel multifunctional optical films

Chih Ho Chiu, Hui Lung Kuo, Pin Cheng Chen, Chun Hsiang Wen, Yi Chun Liu, Huang-Ming Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

Polymerizable nematic liquid crystal (LC) was adopted as a resist for our newly developed nanoimprinting lithography process. Liquid crystal molecules were self-aligned during imprinting process without precoated alignment layer. The large patterned area was able to achieve 4×4 cm2 at very low impriting pressure, 1.5 bar. The optical anisotropic was verified through polarized optical microscopy and the retardation was measured by polarized ultraviolet/visible spectrometer. The micrograted LC films prepared by this novel method offer the potential applications for a LC alignment layer within LC cells, as well as preparation of optical anisotropic films.

Original languageEnglish
Article number073509
JournalApplied Physics Letters
Volume88
Issue number7
DOIs
StatePublished - 24 Feb 2006

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