On-Demand Transient Paper Substrate for Selective Disposability of Thin-Film Electronic Devices

Abstract

This study demonstrates a novel approach to creatinga thin-filmelectronic device that offers selective or complete disposabilityonly in on-demand conditions while maintaining stable operation reliabilityduring everyday use. The approach involves a transient paper substrate,combined with phase change encapsulation and highly bendable planarizationmaterials, achieved through a simple solution process. The substrateused in this study offers a smooth surface morphology that enablesthe creation of stable multilayers for thin-film electronic devices.It also exhibits superior waterproof properties, which allows theproof-of-concept organic light-emitting device to function even whensubmerged in water. Additionally, the substrate provides controlledsurface roughness under repeated bending, demonstrating reliable foldingstability for 1000 cycles at 10 mm of curvature. Furthermore, a specificcomponent of the electronic device can be selectively made to malfunctionthrough predetermined voltage input, and the entire device can befully disposed of via Joule-heating-induced combustion.