Issue 44, 2015

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

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

Article information

Article type
Paper
Submitted
30 juil. 2015
Accepted
18 sept. 2015
First published
18 sept. 2015

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

Author version available

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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