气候变化领域集成服务门户(CCPortal): Combining triboelectric nanogenerator with piezoelectric effect for optimizing Schottky barrier height modulation

CCPortal

DOI	10.1016/j.scib.2021.03.013
	Combining triboelectric nanogenerator with piezoelectric effect for optimizing Schottky barrier height modulation
	Zhao L.; Li H.; Meng J.; Zhang Y.; Feng H.; Wu Y.; Li Z.
发表日期	2021
ISSN	20959273
起始页码	1409
结束页码	1418
卷号	66 期号:14
英文摘要	Schottky-contacted sensors have been demonstrated to show high sensitivity and fast response time in various sensing systems. In order to improve their sensing performance, the Schottky barriers height (SBH) at the interface of semiconductor and metal electrode should be adjusted to appropriate range to avoid low output or low sensitivity, which was induced by excessively high or low SBH, respectively. In this work, a simple and effective SBH tuning method by triboelectric generator (TENG) is proposed, the SBH can be effectively lowered by voltage pulses generated by TENG and gradually recover over time after withdrawing the TENG. Through combining the TENG treatment with piezotronic effect, a synergistic effect on lowering SBH was achieved. The change of SBH is increased by 3.8 to 12.8 times, compared with dependent TENG treatment and piezotronic effect, respectively. Furthermore, the recovery time of the TENG-lowered SBH can be greatly shortened from 1.5 h to 40 s by piezotronic effect. This work demonstrated a flexible and feasible SBH tuning method, which can be used to effectively improve the sensitivity of Schottky-contact sensor and sensing system. Our study also shows great potential in broadening the application scenarios of Schottky-contacted electronic devices. © 2021 Science China Press
关键词	Modulation Piezotronic effect Schottky barrier height Triboelectric nanogenerator ZnO nanowire
英文关键词	II-VI semiconductors; Modulation; Piezoelectricity; Schottky barrier diodes; Semiconductor metal boundaries; Triboelectricity; Tuning; Wide band gap semiconductors; Zinc oxide; Nanogenerators; Piezoelectric; Piezotronic effect; Schottky; Schottky barrier height modulation; Schottky-barrier heights; Sensing systems; Triboelectric nanogenerator; Tuning method; ZnO nanowires; Nanogenerators
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207683
作者单位	CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China; Beijing Institute of Basic Medical Sciences, Beijing, 100850, China; School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China; School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, China; School of Physical Education, Jianghan University, Wuhan, 430056, China
推荐引用方式 GB/T 7714	Zhao L.,Li H.,Meng J.,et al. Combining triboelectric nanogenerator with piezoelectric effect for optimizing Schottky barrier height modulation[J],2021,66(14).
APA	Zhao L..,Li H..,Meng J..,Zhang Y..,Feng H..,...&Li Z..(2021).Combining triboelectric nanogenerator with piezoelectric effect for optimizing Schottky barrier height modulation.Science Bulletin,66(14).
MLA	Zhao L.,et al."Combining triboelectric nanogenerator with piezoelectric effect for optimizing Schottky barrier height modulation".Science Bulletin 66.14(2021).