Highly sensitive microphones based on large freestanding reduced graphene oxide membranes
Kaihui Liu
Nature Communications, Published online: 06 May 2026; doi:10.1038/s41467-026-72771-4 Acoustic sensing devices are important to realize human‒machine interfaces. Here, the authors report the fabrication of freestanding reduced graphene oxide membranes with a diameter-to-thickness ratio of ~106, leading to a static pressure responsivity of ~ 500 μm/Pa and high-performance microphone applications.