POS5-1212
Stretchable MXene/Silver Nanowire (MXAg) Electrodes for Stretchable Light-Emitting Diodes in Biophotonic Applications
When and Where
Nov 30, -0001
00:00 - 00:00
Presenter(s)
Jonghyeong Cho (Pohang University of Science and Technology (POSTECH))
Co-Author(s)
Abstract
Wearable phototherapy and optogenetic stimulation are among the most compelling biophotonic uses now driving interest in stretchable light-emitting diodes (LEDs). Realizing this potential, however, requires electrode materials that combine strong conductivity, mechanical toughness, and stable performance over extended use, a combination that remains difficult to achieve simultaneously. Silver nanowires (AgNWs) are prized for their conductivity, yet they tend to fracture or lose electrical contact under repeated stretching. To overcome this limitation, we developed a hybrid electrode pairing AgNWs with two-dimensional MXene (MXAg), harnessing MXene's flexibility and mechanical robustness alongside the AgNW conductive network. Because the MXene sheets help distribute mechanical stress more evenly across the electrode, wire breakage and interfacial delamination are markedly reduced. LEDs built with MXAg electrodes maintained stable, uniform emission even under repeated stretching and deformation, pointing to MXAg as a scalable, mechanically resilient electrode platform for next-generation biophotonic devices.
