Transparent composites prepared from bacterial cellulose and castor oil based polyurethane as substrates for flexible OLEDs. Issue 44 (30th September 2015)

• Record Type: Journal Article
• Authors: Pinto, E. R. P.; Barud, H. S.; Silva, R. R.; Palmieri, M.; Polito, W. L.; Calil, V. L.; Cremona, M.; Ribeiro, S. J. L.; Messaddeq, Y.
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 44(2015)
• Page Start: 11581
• Page End: 11588
• Publication Date: 2015-09-30
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5tc02359a
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Flexible and transparent BC/PU composites were prepared, which 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 of up to 6 GPa. 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.