Development of Conformable Substrates for OLEDs Using Highly Transparent Bacterial Cellulose Modified with Recycled Polystyrene
Artikel i vetenskaplig tidskrift, 2022

Bacterial cellulose (BC) is a biocompatible and nontoxic biopolymer that has been successfully used as a substrate for flexible organic light emitting diodes (OLEDs). Although BC membranes exhibit excellent mechanical properties and industrial scalability, they are semitransparent, which limits their performance. To improve the optical properties of BC membranes, methods such as the polymerization of different inorganic–organic hybrid materials and petrochemical derivative monomers have been considered; however, these methods require considerable time and effort. In this work, transparent BC membranes for conformable OLEDs substrates are fabricated by spray coating a solution of recycled petrochemical plastics, found in expanded foam package wastes, and d-limonene, which is a green solvent extracted from orange peels. This fabrication approach is highly scalable and can be considered a sustainable technique to develop high performance transparent substrates for photonic applications based on both recovered petrochemical polymers and naturally occurring biopolymers. In terms of the morphological and structural properties, the resulting transparent membranes exhibit a lower roughness than pristine BC. The resulting BC-PS composite is used as a substrate for OLED fabrication. The conformable OLEDs exhibit a current efficiency of up to 5 cd A−1 (16 000 cd m−2) and power density of ≈2.8 mW cm−2.

recycled polystyrene



bacterial cellulose


Ariane V.S. Cebrian

Universidade Estadual Paulista (UNESP)

Rafael S. Carvalho

Pontificia Universidade Catolica do Rio de Janeiro

Arthur R.J. Barreto

Pontificia Universidade Catolica do Rio de Janeiro

Fernando E. Maturi

Universidade Estadual Paulista (UNESP)

Hernane S. Barud

Centro Universitario de Araraquara

Robson Rosa Da Silva

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Cristiano Legnani

Universidade Federal de Juiz de Fora

Universidade Estadual Paulista (UNESP)

Marco Cremona

Pontificia Universidade Catolica do Rio de Janeiro

Sidney J.L. Ribeiro

Universidade Estadual Paulista (UNESP)

Advanced Sustainable Systems

23667486 (eISSN)

Vol. 6 2 2000258




Textil-, gummi- och polymermaterial



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