Jump to main content
Jump to site search

Issue 12, 2018
Previous Article Next Article

Topographical changes in photo-responsive liquid crystal films: a computational analysis

Author affiliations

Abstract

Switchable materials in response to external stimuli serve as building blocks to construct microscale functionalized actuators and sensors. Azobenzene-modified liquid crystal (LC) polymeric networks, that combine liquid crystalline orientational order and elasticity, reversibly undergo conformational changes powered by light. We present a computational framework to describe photo-induced topographical transformations of azobenzene-modified LC glassy polymer coatings. A nonlinear light penetration model is combined with an opto-mechanical constitutive relation to simulate various ordered and corrugated topographical textures resulting from aligned or randomly distributed LC molecule orientations. Our results shed light on the fundamental physical mechanisms of light-triggered surface undulations and can be used as guidelines to optimize surface modulation and roughness in emerging fields that involve haptics interfacing, friction control and wetting manipulation.

Graphical abstract: Topographical changes in photo-responsive liquid crystal films: a computational analysis

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Dec 2017, accepted on 13 Feb 2018 and first published on 15 Feb 2018


Article type: Paper
DOI: 10.1039/C7SM02474F
Citation: Soft Matter, 2018,14, 2411-2428
  •   Request permissions

    Topographical changes in photo-responsive liquid crystal films: a computational analysis

    L. Liu and P. R. Onck, Soft Matter, 2018, 14, 2411
    DOI: 10.1039/C7SM02474F

Search articles by author

Spotlight

Advertisements