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Issue 5, 2015
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Tailoring nanoscale properties of tungsten oxide for inkjet printed electrochromic devices

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Abstract

This paper focuses on the engineering procedures governing the synthesis of tungsten oxide nanocrystals and the formulation of printable dispersions for electrochromic applications. By that means, we aim to stress the relevancy of a proper design strategy that results in improved physicochemical properties of nanoparticle loaded inks. In the present study inkjet printable nanostructured tungsten oxide particles were successfully synthesized via hydrothermal processes using pure or acidified aqueous sol–gel precursors. Based on the proposed scheme, the structure and morphology of the nanoparticles were tailored to ensure the desired printability and electrochromic performance. The developed nanomaterials with specified structures effectively improved the electrochemical response of printed films, resulting in 2.5 times higher optical modulation and 2 times faster coloration time when compared with pure amorphous films.

Graphical abstract: Tailoring nanoscale properties of tungsten oxide for inkjet printed electrochromic devices

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Publication details

The article was received on 01 Oct 2014, accepted on 28 Oct 2014 and first published on 03 Nov 2014


Article type: Paper
DOI: 10.1039/C4NR05765A
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Citation: Nanoscale, 2015,7, 1696-1708
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    Tailoring nanoscale properties of tungsten oxide for inkjet printed electrochromic devices

    P. J. Wojcik, L. Santos, L. Pereira, R. Martins and E. Fortunato, Nanoscale, 2015, 7, 1696
    DOI: 10.1039/C4NR05765A

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