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Additions and corrections for Materials Horizons published 28th November 2013 to 5th March 2014

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Materials Horizons Vol - 1 Issue - 4

Materials Horizons Vol - 1 Issue - 3

Materials Horizons Vol - 1 Issue - 2

Materials Horizons Vol - 1 Issue - 1

Silk/molecular conductor bilayer thin-films: properties and sensing functions

Content Provider	Royal Society of Chemistry (RSC)
Author	Laukhina, Elena Rovira, Concepció Laukhin, Vladimir Lebedev, Victor Steven, Eden Veciana, Jaume Brooks, James S.
Copyright Year	2014
Abstract	Since their discovery, organic conductors have attracted fundamental and device physics interest due to their diverse physical properties. However, conventional electrochemical growth methods produce millimeter-sized crystals that do not translate to the fabrication of large-scale thin-film devices. Of late a chemical-vapor annealing method has been proved to be capable of growing a conductive polycrystalline layer of (BEDT-TTF)2I3 molecular conductor on the surface of soluble polycarbonate (PC) thin films in a bilayer configuration. (Here BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene.) This has resulted in efficient piezoresistive organic molecular sensors. Conversely, solubility and other incompatibilities limit the direct application of the crystallite growth method to other substrates with arbitrary shape and composition. Here we report methods to circumvent these limitations. Specifically, we demonstrate the transfer of the active layer of a PC/(BEDT-TTF)2I3 bilayer film from the non-porous parent PC substrate to porous and humidity-dependent Bombyx mori silk target substrates. SEM analysis, temperature dependent resistance, and electromechanical measurements show no significant damage to the transferred (BEDT-TTF)2I3 layer. The silk/(BEDT-TTF)2I3 bilayer films exhibit additional functions that can be used for humidity sensing, electric current-driven actuators, and strain detection. Of particular significance is the piezoresistive function of the porous silk bilayer structure that allows the investigation of multi-stage diffusion processes.
Starting Page	522
Ending Page	528
Page Count	7
File Format	HTM / HTML PDF
ISSN	20516347
Volume Number	1
Issue Number	5
Journal	Materials Horizons
DOI	10.1039/c4mh00074a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Silk Tetrathiafulvalene Humidity Electrochemistry Crystallite Bombyx mori Diffusion Polycarbonate Physics Nucleic acid thermodynamics
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Electrical and Electronic Engineering Process Chemistry and Technology

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