Nanoscale triboelectrification gated transistor

Tianzhao Bu,Zhiwei Yang,Yuanzhi Cao,Chi Zhang,Xiang Yang,Zhong Lin Wang,Guoxu Liu,Liang Xu

doi:10.1038/s41467-020-14909-6

Abstract

Tribotronics has attracted great attention owing to the demonstrated triboelectrification-controlled electronics and established direct modulation mechanism by external mechanical stimuli. Here, a nanoscale triboelectrification-gated transistor has been studied with contact-mode atomic force microscopy and scanning Kevin probe microscopy. The detailed working principle was analyzed at first, in which the nanoscale triboelectrification can tune the carrier transport in the transistor. Then with the manipulated nanoscale triboelectrification, the effects of contact force, scan speed, contact cycles, contact region and charge diffusion on the transistor were investigated, respectively. Moreover, the manipulated nanoscale triboelectrification serving as a rewritable floating gate has demonstrated different modulation effects by an applied tip voltage. This work has realized the nanoscale triboelectric modulation on electronics, which could provide a deep understanding for the theoretical mechanism of tribotronics and may have great applications in nanoscale transistor, micro/nano-electronic circuit and nano-electromechanical system.

Highlights

Tribotronics has attracted great attention owing to the demonstrated triboelectrificationcontrolled electronics and established direct modulation mechanism by external mechanical stimuli
The detailed working principle was analyzed at first, in which the nanoscale triboelectrification generated on the top dielectric layer by atomic force microscopy (AFM) tip can tune the carrier transport in the nanoscale triboelectrification-gated transistor (NTT)
This work has experimentally realized the nanoscale triboelectric modulation on transistor by using AFM and demonstrated micro/nano-scale tribotronics, which could provide a deep understanding for the theoretical mechanism of tribotronics

Summary

Introduction

Tribotronics has attracted great attention owing to the demonstrated triboelectrificationcontrolled electronics and established direct modulation mechanism by external mechanical stimuli. This work has realized the nanoscale triboelectric modulation on electronics, which could provide a deep understanding for the theoretical mechanism of tribotronics and may have great applications in nanoscale transistor, micro/ nano-electronic circuit and nano-electromechanical system. This work has experimentally realized the nanoscale triboelectric modulation on transistor by using AFM and demonstrated micro/nano-scale tribotronics, which could provide a deep understanding for the theoretical mechanism of tribotronics. The implementation of the NTT can provide direct interactions of electronics with external stimuli, which is highly desired for the development of micro/nano-electronics in diversity and functionality. This may have great prospects in nanoscale transistor, micro/nano-electronic circuit and nanoelectromechanical system (NEMS) for human-machine interfacing, flexible electronics, biomedical diagnosis/therapy and so on

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