Ultra-Stable and Durable Piezoelectric Nanogenerator with All-Weather Service Capability Based on N Doped 4H-SiC Nanohole Arrays

An ultra-stable all-weather service piezoelectric nanogenerator (PENG) with a wide operating temperature range (-80~80  ℃) and a wide operating relative humidity range (0~100%) is proposed. The PENG based on N doped 4H-SiC exhibits long-term service stability up to 50 days. The short circuit current density of PENG based on N doped 4H-SiC is enhanced significantly.