Issue 14, 2023

A flexible and stretchable triboelectric nanogenerator based on a medical conductive hydrogel for biomechanical energy harvesting and electronic switches

Abstract

With the development of intelligent wearable electronic products, new requirements are put forward for large-scale production and durable power supplies and sensors. Herein, a flexible and stretchable single-electrode triboelectric nanogenerator (TENG) based on a medical conductive hydrogel (MCH) has been fabricated for biomechanical energy harvesting and electronic switches. The obtained MCH-TENG encapsulated by silicone rubber as an electrification layer demonstrated high electrical output performances. The size of the fabricated MCH-TENG was 40 × 60 mm2, which can generate an open-circuit voltage of 400 V, a power density of 444.44 mW m−2, and power 240 LEDs in series at a contact frequency of 3.0 Hz. The device can act not only as a power supply to drive electronic devices, but also as an energy collector to collect the energy of human movements. Particularly, as an electronic switch, the device enabled a high current amplification through the Darlington transistor circuit. Consequently, this work provides a new perspective of flexible and stretchable MCH-TENGs for wearable electronic devices.

Graphical abstract: A flexible and stretchable triboelectric nanogenerator based on a medical conductive hydrogel for biomechanical energy harvesting and electronic switches

Supplementary files

Article information

Article type
Paper
Submitted
14 okt 2022
Accepted
01 mar 2023
First published
02 mar 2023

Nanoscale, 2023,15, 6812-6821

A flexible and stretchable triboelectric nanogenerator based on a medical conductive hydrogel for biomechanical energy harvesting and electronic switches

J. Zhao, Y. Wang, B. Wang, Y. Sun, H. Lv, Z. Wang, W. Zhang and Y. Jiang, Nanoscale, 2023, 15, 6812 DOI: 10.1039/D2NR05706A

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