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Self-Powered Humidity Sensor Driven by Triboelectric Nanogenerator Composed of Bio-Wasted Peanut Skin Powder.

Authors :
Saqib, Muhammad
Khan, Shenawar Ali
Khan, Maryam
Iqbal, Shahzad
Rehman, Muhammad Muqeet
Kim, Woo Young
Source :
Polymers (20734360). Mar2024, Vol. 16 Issue 6, p790. 13p.
Publication Year :
2024

Abstract

The increasing number of IoT devices has led to more electronic waste production, which harms the environment and human health. Self-powered sensor systems are a solution, but they often use toxic materials. We propose using biocompatible peanut skin as the active material for a self-powered humidity sensor (PSP-SPHS) through integration with a peanut-skin-based triboelectric nanogenerator (PSP-TENG). The PSP-TENG was characterized electrically and showed promising results, including an open circuit voltage (162 V), short circuit current (0.2 µA), and instantaneous power (2.2 mW) at a loading resistance of 20 MΩ. Peanut skin is a great choice for the sensor due to its porous surface, large surface area, eco-friendliness, and affordability. PSP-TENG was further used as a power source for the PSP-humidity sensor. PSP-SPHS worked as a humidity-dependent resistor, whose resistance decreased with increasing relative humidity (%RH), which further resulted in decreasing voltage across the humidity sensor. This proposed PSP-SPHS exhibited a good sensitivity (0.8 V/RH%), fast response/recovery time (4/10 s), along with excellent stability and repeatability, making it a potential candidate for self-powered humidity sensor technology. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20734360
Volume :
16
Issue :
6
Database :
Academic Search Index
Journal :
Polymers (20734360)
Publication Type :
Academic Journal
Accession number :
176593983
Full Text :
https://doi.org/10.3390/polym16060790