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

Linlin Zhou; Laipan Zhu; Tao Yang; Xinmei Hou; Zhengtao Du; Sheng Cao; Hailong Wang; Kuo-Chih Chou; Zhong Lin Wang

doi:10.1007/s40820-021-00779-0

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

Nanomicro Lett. 2021 Dec 13;14(1):30. doi: 10.1007/s40820-021-00779-0.

Authors

Linlin Zhou¹, Laipan Zhu², Tao Yang³, Xinmei Hou⁴, Zhengtao Du⁵, Sheng Cao⁵, Hailong Wang⁶, Kuo-Chih Chou¹, Zhong Lin Wang²

Affiliations

¹ Beijing Advanced Innovation Center for Materials Genome Engineering, Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China.
² Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, People's Republic of China.
³ Beijing Advanced Innovation Center for Materials Genome Engineering, Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China. yangtaoustb@ustb.edu.cn.
⁴ Beijing Advanced Innovation Center for Materials Genome Engineering, Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China. houxinmeiustb@ustb.edu.cn.
⁵ MOE Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, Guangxi University, Nanning, 530004, People's Republic of China.
⁶ School of Materials Science Engineering, Zhengzhou University, Zhengzhou, 450001, People's Republic of China.

Abstract

Ultra-stable piezoelectric nanogenerator (PENG) driven by environmental 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 compression 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 existence 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.

Keywords: All-weather service capability; Enhanced short circuit current density; Environmental actuation sources; N doped 4H-SiC nanohole arrays; Piezoelectric nanogenerators.