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 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 a uniform pressure on the top cover substrate. We show that both an electric field of a few V μm-1and an external pressure of up to 128 kPa can tune the reflection band by about 100 nm. © 2013 The Royal Society of Chemistry.
Electro and pressure tunable cholesteric liquid crystal devices based on ion-implanted flexible substrates / De Sio, Luciano; Palermo, Giovanna; Caligiuri, Vincenzo; Vasdekis, Andreas E.; Pane, Alfredo; Choi, Jae-Woo; Maffli, Luc; Niklaus, Muhamed; Shea, Herbert R.; Umeton, Cesare. - In: JOURNAL OF MATERIALS CHEMISTRY. C. - ISSN 2050-7534. - 1:47(2013), pp. 7798-7802. [10.1039/c3tc31272k]
Electro and pressure tunable cholesteric liquid crystal devices based on ion-implanted flexible substrates
De Sio, Luciano
;
2013
Abstract
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 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 a uniform pressure on the top cover substrate. We show that both an electric field of a few V μm-1and an external pressure of up to 128 kPa can tune the reflection band by about 100 nm. © 2013 The Royal Society of Chemistry.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
