Improved piezoelectric performance of two-dimensional ZnO nanodisks-based flexible nanogengerators via ZnO/Spiro-MeOTAD PN junction

Chen, Jiyuan; Qiu, Yu; Yang, Debin; She, Jie; Wang, Zhenyu

doi:10.1007/s10854-020-03124-0

Cited by 8 publications

(10 citation statements)

References 26 publications

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“…According to the mechanism of piezotronics from 2D materials, the output current will be regulated to increase or decrease when applied the external strain. Thus, the gauge factor for related sensors will be enhanced or reduced, causing scrambling research of diverse applications, such as various sensors, 158–180 nanogenerators, 181–192 piezo‐catalysis, 193–195 information storage, 196–199 and so on.…”

Section: Applications Of Piezotronics From 2d Materialsmentioning

confidence: 99%

“…Since then, 2D nanogenerators based on various 2D materials have been researched passionately, such as MoSe 2 , 47 α‐In 2 Se 3 , 49 BP, 55 hollow 2D MoS 2 shells, 185 BN, 186 ZnO, 187,188 bilayer WSe 2 , 191 multi‐pores MoS 2 , 192 and so on. The bilayer WSe 2 nanogenerator indicates that stacking direction of TMDCs with even number of atomic layers determines symmetry and piezotronic performance (Figure 9D–F).…”

Section: Applications Of Piezotronics From 2d Materialsmentioning

confidence: 99%

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Piezotronics in two‐dimensional materials

Zhang

Zuo

Chen

et al. 2021

InfoMat

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The fascinating two‐dimensional (2D) materials are being potentially applied in various fields from science to engineering benefitting from the charming physical and chemical properties on optics, electronics, and magnetism, compared with the bulk crystal, while piezotronics is a universal and pervasive phenomenon in the materials with broking center symmetry, promoting the new field and notable achievements of piezotronics in 2D materials with higher accuracy and sensitivity. For example, 20 parts per billion of the detecting limitations in NO2 sensor, 500 μm of spatial strain resolution in flexible devices, and 0.363 eV output voltage in nanogenerators. In this review, three categories of 2D piezotronics materials are first introduced ranging from organic to inorganic data, among which six types of 2D inorganic materials are emphasized based on the geometrical arrangement of different atoms. Then, the microscopic mechanism of carrier transport and separation in 2D piezotronic materials is highlighted, accompanied with the presentation of four measured methods. Subsequently, the developed applications of 2D piezotronics are discussed comprehensively including different kinds of sensors, piezo‐catalysis, nanogenerators and information storage. Ultimately, we suggest the challenges and provide the ideas for qualitative–quantitative research of microscopic mechanism and large‐scale integrated applications of 2D piezotronics.

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Section: Applications Of Piezotronics From 2d Materialsmentioning

confidence: 99%

Section: Applications Of Piezotronics From 2d Materialsmentioning

confidence: 99%

Piezotronics in two‐dimensional materials

Zhang

Zuo

Chen

et al. 2021

InfoMat

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“…Zinc oxide nanoparticles (ZnONPs) are one particular type of TCO nanomaterial that has attracted great attention because of their wide bandgap, negligible absorption in the visible region and large exciton-binding energy of 60 meV at room temperature [ 18 ], high mechanical and chemical stability, and low cost [ 19 ]. This combination of properties has made them a powerful element in many applications, such as electronics [ 20 ], nanomedicine [ 21 ], bioinspired systems [ 22 ], and communications [ 23 ]. Owing to their perfect crystalline nature, stability at high temperature and pressure, and high transparency in a wide-band optical region, ZnONPs are considered to be a suitable material in many nonlinear optical devices, including optical limiters, new frequency generation, optical switches, biological imaging and treatment with high resolution [ 24 , 25 , 26 ], and UV-blue nanolasers [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water

et al. 2022

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The nonlinear optical properties of zinc oxide nanoparticles (ZnONPs) in distilled water were measured using a femtosecond laser and the Z-scan technique. The ZnONPs colloids were created by the ablation of zinc bulk in distilled water with a 532 nm Nd: YAG laser. Transmission electron microscopy, an ultraviolet-visible spectrophotometer, and atomic absorption spectrophotometry were used to determine the size, shape, absorption spectra, and concentration of the ZnONPs colloids. The nonlinear absorption coefficient and nonlinear refractive index were measured at different excitation wavelengths and intensities. The nonlinear absorption coefficient of the ZnONPs colloids was found to be positive, caused by reverse saturable absorption, whereas the nonlinear refractive index was found to be negative due to self-defocusing in the ZnONPs. Both laser parameters, such as excitation wavelength and input intensity, and nanoparticle features, such as concentration and size, were found to influence the nonlinear optical properties of the ZnONPs.

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“…This result is in good agreement with the previous analysis. 27 For measuring the electric output performance generated from both NGs based on SNSs and CNSs, a manually applied pressure was periodically introduced to deform the device with a specially designed measuring setup, 28 so that the NGs could experience a cycling pressing-releasing process. The measuring setup is consisted of a xation, a platform, and a screw to apply a certain amount vertical force along the z-axis on a thin nanolm.…”

Section: Characterization and Measurementmentioning

confidence: 99%