NC State
T. Enomae, Y. Xu, E. Oktavia, M. Morii and H. Koga. Paper-based electronics and sensors fabricated by using printing technology. In Advances in Pulp and Paper Research, Oxford 2017, Trans. of the XVIth Fund. Res. Symp. Oxford, 2017, (W.Batchelor and D.Söderberg, eds), pp 739–749, FRC, Manchester, 2018.


Paper is seen as a potential substrate for devices such as electronics and sensor because of environmental friendliness being a dualistic material with flexibility and rigidity, and a possibility for mass production at low cost. In this study, two such applications as devices will be introduced. First, a power generator has been developed to convert sonic vibration into electric energy. Secondly, a corona discharge-treated polytetrafluoroethylene sheet, as an electret, was attached to a paperboard with a back electrode. Another paperboard with a counter electrode was mechanically vibrated to simulate a sound. During vibration, electric power was successfully generated by electrostatic induction. Insertion of nano0cellulose paper further more enhanced the output voltage. A simple, quick, sensitive and ion species-selective paper-based sensor with a quinone derivative dye ink-jet printed has been developed to detect Cu2+ ions at 2 ppm, a maximum allowed for drinking water, by colour change observation. A fluorescence spectrum of the dye provided higher resolution to permit quantitative detection of Cu2+ concentrations.

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