Applications of Liquid Crystalline Elastomers - Liquid Crystal Elastomers: Materials and Applications - page 69

Fig. 12 LCE-covered
ribbon moves two pulleys.
Simultaneous irradiation
with visible and UV light on
different areas of the setup
leads to contraction and
expansion on different sides
[ 94 ] . Copyright Wiley-VCH
Verlag GmbH & Co. KGaA.
Reproduced with permission

a

Belt Alignment
direction

Vis

UV

Axle

Pulleys

Axle

b

White spot
as a marker

0 s 16s

8s 24s

Ultraviolet on

Ultraviolet + Visible on

Visible on

Start Visible light Ultraviolet + visible light Ultraviolet light

Fig. 13 Fibers containing two different LCEs sensitized to different wavelengths. Different
combinations of light sources allow different movements [ 82 ] . Reprinted by permission from
Macmillan Publishers [Nature Materials]. Copyright (2009)