Publication

NMSL Lab

Publication

Self-Powered Smart Touchpad using Novel Intrinsic Piezo–Tribo Hybrid Nanogenerator
Author
Monunith Anithkumar, Asokan Poorani Sathya Prasanna, Nagamalleswara Rao Alluri, Sang-Jae Kim
Journal
Advanced Fuctional materials
Page
2213907
Year
2023

Abstract

Novel hybrid nanogenerators (HNG) with multifunctional materials are gaining immense interest due to their high electrical output and broad applications in the electronic industry. Intrinsic hybridization of single electrode triboelectric (SE-TE) and piezoelectric (PE) nanogenerators (NGs), that is, double layered (DL)-HNG can eliminate the real-time electrical grounding issues of SE-TE-NG and produces high output (176.41 V, 168.1 mW m−2) due to synergistic TE–PE effects of Multifunctional Composite film (MFC). The flexible MFC films are made-up of Cu2O-doped 0.3Ba0.7Ca0.3TiO3-0.7BaSn0.12Ti0.88O3 nanoparticles (Cu2O-BCST NPs), which exhibits morphotropic phase boundary along with the polydimethylsiloxane  polymer. Further, DL-HNG scaled up to 4 × 4 matrix (using the 3D-printed mask) can work as a flexible self-powered trackpad (or touch) sensor to control the mouse pointer in computer or touch screen display devices.