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Communication Dans Un Congrès Année : 2019

Hybrid system to develop transparent and conductive ink

Résumé

Nowadays, conductive and transparent materials are limited. The main material is In- dium Tin Oxide (ITO). Despites their excellent property in terms of transparency and con- ductivity, ITO is brittle and not easily processable to produce patterns for radio-frequencies applications for example. To answer this problematic, we propose in this study a new solution with an ink, formulated with nanocellulose and a conductive material, for screen-printing application. The oxidized cellulose nanofibrils used have multiple roles: i) as a transparent matrix with adapted rheological properties, ii) as an adhesion link between the substrate and the silver nanowire iii) as a dispersing agent to favor the nanostructured network of the conductive material. The hybrid system has been characterized by AFM, SEM-FEG, rheometer and the final antenna by anechoic chamber. The ink developed present new results with a high conductivity (Rs<10 Ω.sq -1) and a good transparency (%T>70% @550nm) by keeping adapted rheology properties (G’ and G”). These results allow printing of conductive and transparent pattern usefull for various applications.
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Dates et versions

hal-02177934 , version 1 (09-07-2019)

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  • HAL Id : hal-02177934 , version 1

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Maxime Wawrzyniak, Aurore Denneulin, Tan Phu Vuong, Julien Bras. Hybrid system to develop transparent and conductive ink. 6th EPNOE International Polysaccharide Conference, Oct 2019, Aveiro, Portugal. ⟨hal-02177934⟩
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