Apr 8, 2025
11:30am - 11:45am
Summit, Level 4, Room 448
Husnu Unalan1,Mete Durukan1,Melih Cicek1,Doga Doganay1,Mustafa Gorur1,Simge Cinar1
Middle East Technical University1
Husnu Unalan1,Mete Durukan1,Melih Cicek1,Doga Doganay1,Mustafa Gorur1,Simge Cinar1
Middle East Technical University1
The growing demand for consumer electronics has led to a parallel rise in electronic waste (e-waste), contributing to significant environmental challenges worldwide. Transient electronics present a promising solution by enabling devices to degrade after use, reducing pollution. Although some transient components like transistors and batteries have been developed, achieving full transiency across all electronic components is essential. In this work, multifunctional nanocomposite electrodes were fabricated using poly(vinyl alcohol), carbon black, and activated carbon. These electrodes were employed to create physically transient supercapacitors, triboelectric nanogenerators, and capacitive sensors. The transient supercapacitors exhibited excellent performance over multiple uses, demonstrating their potential as energy storage elements in transient systems. Additionally, the transient triboelectric nanogenerators harvested mechanical energy, eliminating the need for external power sources and enabling self-powered devices, such as the touchpad demonstrated here. Finally, the transient capacitive sensors provided long linear sensitivities, offering an eco-friendly solution for monitoring physiological signals and body movements without generating waste.