Energy Generating Large Area Electronic Skin
Ravinder Dahiya a
a University of Glasgow, James Watt School of Engineering, United Kingdom
Materials for Sustainable Development Conference (MATSUS)
Proceedings of Online nanoGe Fall Meeting 20 (OnlineNFM20)
#SolPow20. Solar Powered Electrochemical Energy Storage Devices
Online, Spain, 2020 October 20th - 23rd
Organizers: Teresa Andreu and Anders Bentien
Invited Speaker, Ravinder Dahiya, presentation 187
Publication date: 4th October 2020

Tactile or electronic skin is needed to provide critical haptic perception to robots and amputees, as well as in wearable electronic systems that are used for health monitoring and wellness applications. Energy autonomy of skin is a critical factor in these application to enable portability and longer operation times. This lecture will present an energy autonomous electronic skin based on a novel structure, consisting of graphene based transparent tactile sensitive layer integrated on photovoltaic cells. Transparency of the touch sensitive layer allows the photovoltaic cell to effectively harvest light. The touch sensitive layer requires ultralow power (20 nW/cm2) for its operation and this leads to surplus energy generation by the photovoltaic cells underneath. The lecture will also present our advanced version of electronic skin, where no touch sensor is used and yet the innovative arrangement of solar cells allows touch sensing from large areas. Given that there is not separate touch sensor, this advanced version of electronics skin does not consume any energy for sensing operation and instead only produces energy. If this skin is present over large areas, as human skin is present over whole body, then it could generate sufficient energy to power devices such as actuators used in robotics and prosthetics. Such scenarios enabled by the energy autonomous electronics skin integrated on robotic hand will be presented in the lecture along with the tasks such as grabbing of soft objects.

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