Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/138837
Title: Highly transparent and integrable surface texture change device for localized tactile feedback
Authors: Ankit
Tiwari, Naveen
Rajput, Mayank
Chien, Nguyen Anh
Mathews, Nripan
Keywords: Materials Science and Engineering
Engineering::Materials
Issue Date: 2018
Source: Ankit., Tiwari, N., Rajput, M., Chien, N. A., & Mathews, N. (2018). Highly transparent and integrable surface texture change device for localized tactile feedback. Small, 14(1), 1702312-. doi:10.1002/smll.201702312
Journal: Small 
Abstract: Human-machine haptic interaction is typically detected by variations in friction, roughness, hardness, and temperature; which combines to create sensation of surface texture change. Most of the current technologies work to simulate changes in tactile perception (via electrostatic, lateral force fields, vibration motors etc) without creating actual topographical transformations. This makes it challenging to provide localized feedback. Here, we demonstrate a new concept for on-demand surface texture augmentation that is capable of physically forming local topographic features in any pre-designed pattern. The transparent, flexible, integrable device comprises of a hybrid electrode system with conductive hydrogel, silver nanowires and conductive polymers with acrylic elastomer as the dielectric layer. Desired surface textures can be controlled by pre-designed pattern of electrodes, which operates as independent or interconnected actuators. Surface features with up to a height of 0.155 mm can be achieved with a transformation time of less than a second for a device area of 18 cm2. High transparency levels of 76% were achieved due to the judicious choice of the electrode and the active elastomer layer. The capability of localized and controlled deformations, make this system highly useful for applications such as display touchscreens, touchpads, braille displays, on-demand buttons and microfluidic devices.
URI: https://hdl.handle.net/10356/138837
ISSN: 1613-6810
DOI: 10.1002/smll.201702312
DOI (Related Dataset): https://doi.org/10.21979/N9/FNJPVD
Schools: School of Materials Science & Engineering 
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: This is the peer reviewed version of the following article: Ankit., Tiwari, N., Rajput, M., Chien, N. A., & Mathews, N. (2018). Highly transparent and integrable surface texture change device for localized tactile feedback. Small, 14(1), 1702312-., which has been published in final form at https://dx.doi.org/10.1002/smll.201702312. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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