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|Title:||A planar electrochromic device using WO3 nanoparticles and a modified paper-based electrolyte|
Sales, M. G. F.
|Citation:||Marques, Ana; Santos, Lídia; Pereira, Sónia; Emanuele, Umberto; Sinopoli, Stefano; Igreja, Rui; Sales, M. G. F.; Martins, Rodrigo; Fortunato, Elvira, A planar electrochromic device using WO3 nanoparticles and a modified paper-based electrolyte. Proceedings. Vol. 2(13), MDPI AG, 1065, 2018.|
|Abstract(s):||Electrochromic devices are increasing its interest in the last decades due to the wide range of applications, from smart windows to biosensors or from smart labels to super-capacitors. So, the development of simple and cost-effective production technologies based on solution process and mask less approach is of great interest. In this work, a new planar and flexible electrochromic device based on tungsten oxide (WO3) nanoparticles with a paper-based modified electrolyte was successfully produced, using a CO2 laser technology for electrodes patterning and hydrothermal synthesis for the nanoparticles production. The devices were fabricated with a paper pad inserted in the sensor area for hydration on time of usage, thus replacing the electrolyte material of a typical electrochromic structure with a multi-layer stack, eliminating leakage problems, easy integration with other devices and enhancing the shelf life of the devices to several months. The produced device presents a low power consumption of only 2.86 A·cm2, with a deep blue color and an initial charge modulation of 11.5.|
|Appears in Collections:||CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series|
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