Here, we demonstrate the synthesis process of large area graphene, grown by Atmospheric Pressure Chemical Vapour Deposition technique and transferred on polyethylene terephthalate PET substrates. Quality assessments were confirmed by Scanning Electron Microscopy (SEM), Raman analysis and optical spectroscopy. Stability of the sheet resistance after 1500 bending tests of graphene /PET is demonstrated. Next, graphene was implemented as transparent conductive electrode in flexible devices: several graphene-based Polymer Dispersed Liquid Crystal (PDLC) devices have been fabricated and their electro-optical properties, such as voltage-dependent transmittance, response time and flexibility were measured and presented by video demonstrations. The obtained results open a great potential of graphene integration into the next generation ITO-free flexible and stretchable optoelectronics.
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Multilayer graphene supported flexible optoelectronic devices
Published:
11 November 2020
by MDPI
in 2nd International Online-Conference on Nanomaterials
session Graphene & 2D Nanomaterials & Soft Nanomaterials
Abstract:
Keywords: graphene synthesis, characterizations, graphene supported PDLC smart devices
Comments on this paper
Andreza Lima
18 November 2020
Sheet resistance
Congratulations for your work. I would like to know if this sheet resistance is suitable for applying this multilayer graphene as TCE in flexible solar cells. Is there any action that can decrease the sheet resistance, like a treatment or doping?
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