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

• 作者: Linlin Zhou Laipan Zhu Tao Yang Xinmei Hou Zhengtao Du Sheng Cao Hailong Wang Kuo-Chih Chou Zhong Lin Wang
• 来源期刊: 纳微快报（英文版）
• 年，卷（期）: 2022,（2）
• 页码范围: 151-160
• 页数: 10页
• 语种: 英文

摘要

Ultra-stable piezoelectric nanogenerator (PENG) driven by environ-mental actuation sources with all-weather service capability is highly desirable.Here,the PENG based on N doped 4H-SiC nanohole arrays (NHAs) is proposed to harvest ambient energy under low/high temperature and relative humidity (RH)conditions.Finite element method simulation of N doped 4H-SiC NHAs in com-pression mode is developed to evaluate the relationship between nanohole diameter and piezoelectric performance.The density of short circuit current of the assembled PENG reaches 313 nA cm-2,which is 1.57 times the output of PENG based on N doped 4H-SiC nanowire arrays.The enhancement can be attributed to the exist-ence of nanohole sidewalls in NHAs.All-weather service capability of the PENG is verified after being treated at-80/80 ℃ and 0％/100％ RH for 50 days.The PENG is promising to be widely used in practice worldwide to harvest biomechanical energy and mechanical energy.