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Ciência & Tecnologia dos Materiais

versão impressa ISSN 0870-8312

Resumo

CORREIA, Nuno et al. Papel Interactivo - Produção e caracterização de dispositivos electrocrómicos em papel. C.Tecn. Mat. [online]. 2009, vol.21, n.1-2, pp.2-10. ISSN 0870-8312.

This work reports the production of electrochromic devices on paper substrates. An electrochromic cell is composed by several layers (substrate/electrode /electrochromic/electrolyte/counter-electrode/electrode/substrate). Applying a potential difference between electrodes will result in an alternate change of the electrochromic material from colored to bleached state. These devices have gained interest in the scientific community specifically in the search for new lightweight, flexible and low cost substrates. Morphological, electrical, structural and optical characterization was made. Combining electrochromic technology with paper revealed singular challenges inherent to this material, due to its fragility and surface roughness. However adding this functionality to such a common material not only increases its value but also provides new opportunities for the disposable electronic market.

Palavras-chave : Paper substrate; cellulose; electrochromic devices; WO3; disposable electronics.

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