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 magneti...
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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 *** example,20 parts per billion of the detecting limitations in NO_(2)sensor,500μm of spatial strain resolution in flexible devices,and 0.363 eV output voltage 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 ***,the microscopic mechanism of carrier transport and separation in 2D piezotronic materials is highlighted,accompanied with the presentation of four measured ***,the developed applications of 2D piezotronics are discussed comprehensively including different kinds of sensors,piezo-catalysis,nanogenerators and information ***,we suggest the challenges and provide the ideas for qualitative-quantitative research of microscopic mechanism and large-scale integrated applications of 2D piezotronics.
Fabricating high integration density,high resolution,and intrinsically stretchable patterns by patterned technologies remain *** printing enabled high-precision patterned fabrication at a facile ***,the pattern spacin...
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Fabricating high integration density,high resolution,and intrinsically stretchable patterns by patterned technologies remain *** printing enabled high-precision patterned fabrication at a facile ***,the pattern spacing constraint is the major limitation to high integration *** this study,we develop an elastomer-assisted strategy to improve the template printing process,which involves patterning on the prestrain elastic *** strategy overcomes the spacing limitation and enables the realization of a centimeter-scale pattern with submicron ***,the integration density of fabricated intrinsically stretchable patterns can reach 1932 lines on a substrate of 0.5 cm2;the assembly lines with a feature size of 880 nm and an interval of 955 ***,we demonstrate a facile approach for constructing silver nanoparticle/liquid metal alloy composite conductive *** as-prepared flexible electrodes can withstand up to 150%strain and a 2-mm bend *** method provides new insights into template printing ***,it opens a route for the simultaneous construction of functional patterned arrays with large scale,high integration density,and intrinsic stretchability,which will be useful for the integrated fabrication of various flexible electronic devices.
Recently, a high-performance and low-priced transparent conductive film has been expected to be developed because flexible devices produced using organic materials have been actively studied. An indium tin oxide (ITO)...
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Recently, a high-performance and low-priced transparent conductive film has been expected to be developed because flexible devices produced using organic materials have been actively studied. An indium tin oxide (ITO) thin film, which has been generally used as a material for a transparent conductive film, has problems, such as fragility to bending stress and depletion of the resource. The present study used poly(3, 4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS), an organic electroconductive material, and examined the improvement in the resistance value and visible light transmittance of a transparent conductive film produced using the ink-jet method. In previous studies, we reported that, to improve the resistance value and visible light transmittance of a thin film, it was effective to clean the film substrate with ultraviolet/ozone (UV/O3) treatment, anneal the film after it was deposited on the substance, and dip the annealed film into a polar solvent. Focusing on the thin film processing between printing operations, the present study improved resistance value and visible light transmittance by examining both the application methods of a polar solvent and the annealing time between printing operations. As a result, the resistance value and visible light transmittance of a PEDOT:PSS thin film were 390.4 Ω and 86.6%, respectively. This film was obtained by applying a polar solvent and performing annealing for 30 min between printing operations. The printing was performed three times.
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