Electro and pressure tunable cholesteric liquid crystal devices based on ion-implanted flexible substrates

We report an electro-responsive and pressure sensitive device based on conductive polydimethylsiloxane (PDMS) combined with a short pitch Cholesteric Liquid Crystal (CLC). Ion-implantation and surface chemistry in PDMS enable both the induction of conducting properties in this elastomer, as well as a long range organization of the CLC. Sample electro-optical and pressure dependent optical properties are explored by applying a modulated electric field through the conducting PDMS and an uniform pressure on the top cover substrate. We show that both an electric field of few V/µm and an external pressure of up to 128 KPa can tune the reflection band by about 100 nm


Published in:
Journal Of Materials Chemistry C, 1, 47, 7798-7802
Year:
2013
ISSN:
2050-7534
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2013-10-01, last modified 2018-03-30

n/a:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)