Peng-Fan Wu

Field‐Regulated Triboelectric Nanogenerators for Enhanced Energy Conversion

Triboelectric nanogenerators (TENGs) provide a versatile platform for distributed mechanical energy harvesting and self‐powered sensing. However, their practical deployment remains constrained by insufficient surface charge density, high output impedance, impedance mismatch, and environmental instability, particularly...

Broadband wearable acoustic sensing for continuous cardiopulmonary monitoring

The human body continuously generates weak, broadband acoustic–mechanical signals that encode rich cardiopulmonary information, yet their reliable capture in real-world settings remains constrained by motion artifacts, limited bandwidth, and suboptimal mechanical coupling. Here, we present a wearable, wireless stethosc...

Advances in piezoelectric materials with diverse crystal structures: from design to applications