Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 29, 2015
Previous Article Next Article

A transparent flexible z-axis sensitive multi-touch panel based on colloidal ITO nanocrystals

Author affiliations

Abstract

Bottom-up fabrication of a flexible multi-touch panel prototype based on transparent colloidal indium tin oxide (ITO) nanocrystal (NC) films is presented. A series of 7% Sn4+ doped ITO NCs protected by oleate, octanoate and butanoate ligands are synthesized and characterized by a battery of techniques including, high resolution transmission electron microscopy, X-ray diffraction, 1H, 13C and 119Sn nuclear magnetic resonance spectroscopy, and the related diffusion ordered spectroscopy. Electrical resistivities of transparent films of these NCs assembled on flexible polyethylene terephthalate substrates by convective self-assembly from their suspension in toluene decrease with the ligand length, from 220 × 103 for oleate ITO to 13 × 103 Ω cm for butanoate ITO NC films. A highly transparent, flexible touch panel based on a matrix of strain gauges derived from the least resistive film of 17 nm butanoate ITO NCs sensitively detects the lateral position (x, y) of the touch as well as its intensity over the z-axis. Being compatible with a stylus or bare/gloved finger, a larger version of this module may be readily implemented in upcoming flexible screens, enabling navigation capabilities over all three axes, a feature highly desired by the display industry.

Graphical abstract: A transparent flexible z-axis sensitive multi-touch panel based on colloidal ITO nanocrystals

Back to tab navigation

Supplementary files

Article information


Submitted
30 Mar 2015
Accepted
13 Jun 2015
First published
07 Jul 2015

Nanoscale, 2015,7, 12631-12640
Article type
Paper

A transparent flexible z-axis sensitive multi-touch panel based on colloidal ITO nanocrystals

N. M. Sangeetha, M. Gauvin, N. Decorde, F. Delpech, P. F. Fazzini, B. Viallet, G. Viau, J. Grisolia and L. Ressier, Nanoscale, 2015, 7, 12631
DOI: 10.1039/C5NR02043C

Social activity

Search articles by author

Spotlight

Advertisements