Piezoelectricity in monolayer MXene for nanogenerators and piezotronics

Tan, Dongchen; Jiang, Chengming; Sun, Nan; Huang, Jijie; Zhang, Zhe; Zhang, Qingxiao; Bu, Jingyuan; Bi, Sheng; Guo, Qinglei; Song, Jinhui

doi:10.1016/j.nanoen.2021.106528

Cited by 53 publications

(37 citation statements)

References 53 publications

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“…The current‐voltage ( I–V ) curve of the monolayer Ti 3 C 2 Tx MXene device produces asymmetric transmission characteristics, which are modulated by piezoelectric polarized charges from the tensile strain. [ 16 ] This phenomenon is responded to the piezoelectricity as the reported works with tungstite and zincite structures, whereby piezoelectric polarization is the main cause of modulated changes in carrier transport properties. [ 30 ] Furthermore, the configuration of the metal‐piezoelectric materials and the intrinsic asymmetric modulation process can introduce a transduction scheme for the strain‐induced polarization phenomenon to sense external signals.…”

Section: Resultsmentioning

confidence: 99%

“…[ 14 ] The non‐uniformly distributed mechanical and piezoelectricity of the Ti 3 C 2 Tx MXene can potentially realize resonance signal detection of higher‐order vibrational modes at the atomic level in a resonant system. [ 15 , 16 , 17 , 18 ] Some of the works predict the special behavior of the MXene as a high‐performance and high‐sensitivity resonator for applications. [ 19 , 20 ] However, the exploration and implementation of the Ti 3 C 2 Tx MXene‐based nanomechanical resonance systems have not been elaborated to date yet.…”

Section: Introductionmentioning

confidence: 99%

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Monolayer MXene Nanoelectromechanical Piezo‐Resonators with 0.2 Zeptogram Mass Resolution

et al. 2022

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2D materials‐based nanoelectromechanical resonant systems with high sensitivity can precisely trace quantities of ultra‐small mass molecules and therefore are broadly applied in biological analysis, chemical sensing, and physical detection. However, conventional optical and capacitive transconductance schemes struggle to measure high‐order mode resonant effectively, which is the scientific key to further achieving higher accuracy and lower noise. In the present study, the different vibrations of monolayer Ti 3 C 2 Tx MXene piezo‐resonators are investigated, and achieve a high‐order f 2,3 resonant mode with a ≈234.59 ± 0.05 MHz characteristic peak due to the special piezoelectrical structure of the Ti 3 C 2 Tx MXene layer. The effective measurements of signals have a low thermomechanical motion spectral density (9.66 ± 0.01 ) and an extensive dynamic range (118.49 ± 0.42 dB) with sub‐zeptograms resolution (0.22 ± 0.01 zg) at 300 K temperature and 1 atm. Furthermore, the functional groups of the Ti 3 C 2 Tx MXene with unique adsorption properties enable a high working range ratio of ≈3100 and excellent repeatability. This Ti 3 C 2 Tx MXene device demonstrates encouraging performance advancements over other nano‐resonators and will lead the related engineering applications including high‐sensitivity mass detectors.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Monolayer MXene Nanoelectromechanical Piezo‐Resonators with 0.2 Zeptogram Mass Resolution

et al. 2022

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“…Piezoelectrics are a noncentrosymmetric crystal structure that separates positive and negative charges under the action of external forces, resulting in a corresponding piezopotential [116][117][118]. Piezocatalysis refers to the conversion of mechanical energy into chemical energy.…”

Section: Piezoelectric Catalytic Activationmentioning

confidence: 99%

A Review of Activation Persulfate by Iron-Based Catalysts for Degrading Wastewater

Zhi

et al. 2021

Applied Sciences

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Advanced oxidation technology of persulfate is a new method to degrade wastewater. As the economy progresses and technology develops, increasingly more pollutants produced by the paper industry, printing and dyeing, and the chemical industry are discharged into water, causing irreversible damage to water. Methods and research directions of activation persulfate for wastewater degradation by a variety of iron-based catalysts are reviewed. This review describes the merits and demerits of advanced oxidation techniques for activated persulfate by iron-based catalysts. In order to promote the development of related research work, the problems existing in the current application are analyzed.

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“…[1][2][3][4] In comparison to vision, smell, taste, and hearing, haptics is more complex to replicate since it requires highspatial-resolution, high-sensitivity, rapid reaction, and large scale array of pressure sensors. [5][6][7][8][9][10][11][12] Several groups have demonstrated arrays of pressure sensors composed of assembled nanowires, organic transistors, or microstructured rubber layers based on capacitive or resistive variations. [13][14][15][16][17][18][19][20] These have been implemented to distribute strain in the form of a matrix with millimeter-level resolution.…”

Section: Introductionmentioning

confidence: 99%

“…For a long time, electronics as the human senses have always been big problems facing artificial intelligence, but it′s crucial for exploitation of natural and approachable human‐machine interfaces [1–4] . In comparison to vision, smell, taste, and hearing, haptics is more complex to replicate since it requires high‐spatial‐resolution, high‐sensitivity, rapid reaction, and large scale array of pressure sensors [5–12] . Several groups have demonstrated arrays of pressure sensors composed of assembled nanowires, organic transistors, or microstructured rubber layers based on capacitive or resistive variations [13–20] .…”

Section: Introductionmentioning

confidence: 99%

Light Emission Enhancement of a ZnO/TAZ Heterostructure Piezo‐OLED by Means of a Piezo‐Phototronic Effect

Sun

et al. 2022

ChemistrySelect

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Pressure sensing simulation using high resolution electronics is important in future robot and human-computer interactions. In this research, we prove that the two-dimensional distribution of strain can be mapped using an array of piezoelectric organic light-emitting diode (piezo-OLED) pressure sensors. Each dot is made up of a piezo-ZnO/TAZ OLED, whose emission intensity is determined by the local strain with piezoelectric photoelectric effect. Reading out the electroluminescence signal with a temporal resolution of 100 ms produces the pressure intensity. Individuality signature and artificial skin technology for optical MEMS and bioimaging can benefit from the device's ability to digitally image mechanical impulses via optical methods.

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Piezoelectricity in monolayer MXene for nanogenerators and piezotronics

Cited by 53 publications

References 53 publications

Monolayer MXene Nanoelectromechanical Piezo‐Resonators with 0.2 Zeptogram Mass Resolution

Monolayer MXene Nanoelectromechanical Piezo‐Resonators with 0.2 Zeptogram Mass Resolution

A Review of Activation Persulfate by Iron-Based Catalysts for Degrading Wastewater

Light Emission Enhancement of a ZnO/TAZ Heterostructure Piezo‐OLED by Means of a Piezo‐Phototronic Effect

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