Issue 44, 2015
From the journal:

Journal of Materials Chemistry C

Transparent composites prepared from bacterial cellulose and castor oil based polyurethane as substrates for flexible OLEDs

E. R. P. Pinto,†a   H. S. Barud,†*ab   R. R. Silva,a   M. Palmieri,a   W. L. Polito,c   V. L. Calil,c   M. Cremona,d   S. J. L. Ribeiroa  and  Y. Messaddeqa  

* Corresponding authors

a Institute of Chemistry – São Paulo State University – UNESP, Araraquara, São Paulo 14801-970, Brazil
E-mail: hernane.barud@gmail.com

b Centro universitário de Araraquara – UNIARA, Araraquara, São Paulo 14801-320, Brazil

c Institute of Chemistry – São Paulo University – USP, São Carlos, São Paulo 13560-250, Brazil

d Department of Physics – Pontifical Catholic University – PUC, Rio de Janeiro 22451-900, Brazil

Abstract

Flexible and transparent composites were prepared from bacterial cellulose (BC) and castor oil based polyurethane (PU). The new BC/PU composites exhibit excellent transparency (up to 90%) in the visible region and great mechanical properties, with a tensile strength of up to 69 MPa and a Young's Modulus up to 6 GPa. The resulting free-standing thin films possessed low surface roughness (below 1 nm), and whose properties suggest a potential candidate substrate for flexible light emitting devices. Subsequently, the fabrication of flexible organic light emitting diodes (flexible OLEDs) was successfully investigated by using flexible transparent BC/PU membranes rather than standard flat glass substrates.

Graphical abstract: Transparent composites prepared from bacterial cellulose and castor oil based polyurethane as substrates for flexible OLEDs

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Article information

DOI
https://doi.org/10.1039/C5TC02359A
Article type
Paper
Submitted
30 Jul 2015
Accepted
18 Sep 2015
First published
18 Sep 2015

J. Mater. Chem. C, 2015,3, 11581-11588

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Transparent composites prepared from bacterial cellulose and castor oil based polyurethane as substrates for flexible OLEDs

E. R. P. Pinto, H. S. Barud, R. R. Silva, M. Palmieri, W. L. Polito, V. L. Calil, M. Cremona, S. J. L. Ribeiro and Y. Messaddeq, J. Mater. Chem. C, 2015, 3, 11581 DOI: 10.1039/C5TC02359A

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