A technique for controlling the alignment of silver nanowires with an electric field

Cao, Yang; Liu, Wei; Sun, Jia‐Lin; Han, Yaping; Zhang, Jianhong; Liu, Sheng; Sun, Hongqi; Guo, Jun

doi:10.1088/0957-4484/17/9/050

Cited by 59 publications

(38 citation statements)

References 18 publications

(28 reference statements)

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“…1 B–C) Electric fields have been widely used in various other applications, e.g. for electrophoresis [16] , electrophoretic deposition [17] , to align nanofibers [18] , to orient liquid-crystalline molecules [19a, 19b] , to manipulate nanoparticles and biomolecules [20] , to control physical [21] , magnetic [22] and optical [23] properties, and for various therapeutic uses involving the manipulation of living cells. [24a, 24b] To accomplish our goal, we implemented the superposition of the intrinsic osmotic forces of the system with an externally applied electric field.…”

Section: Introductionmentioning

confidence: 99%

Electric Field Controlled Self‐Assembly of Hierarchically Ordered Membranes

Velichko

Mantei

Bitton

et al. 2011

Adv Funct Materials

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Self-assembly in the presence of external forces is an adaptive, directed organization of molecular components under nonequilibrium conditions. While forces may be generated as a result of spontaneous interactions among components of a system, intervention with external forces can significantly alter the final outcome of self-assembly. Superimposing these intrinsic and extrinsic forces provides greater degrees of freedom to control the structure and function of self-assembling materials. In this work we investigate the role of electric fields during the dynamic self-assembly of a negatively charged polyelectrolyte and a positively charged peptide amphiphile in water leading to the formation of an ordered membrane. In the absence of electric fields, contact between the two solutions of oppositely charged molecules triggers the growth of closed membranes with vertically oriented fibrils that encapsulate the polyelectrolyte solution. This process of self-assembly is intrinsically driven by excess osmotic pressure of counterions, and the electric field is found to modify the kinetics of membrane formation, and also its morphology and properties. Depending on the strength and orientation of the field we observe a significant increase or decrease of up to nearly 100% in membrane thickness, as well as the controlled rotation of nanofiber growth direction by 90 degrees, resulting in a significant increase in mechanical stiffness. These results suggest the possibility of using electric fields to control structure in self-assembly processes involving diffusion of oppositely charged molecules.

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Section: Introductionmentioning

confidence: 99%

Electric Field Controlled Self‐Assembly of Hierarchically Ordered Membranes

Velichko

Mantei

Bitton

et al. 2011

Adv Funct Materials

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“…Owing to the small dimensions and mechanical fragility of nanoscale inorganic EMs, their assembly and functional integration with high spatial and orientational precision remains an important challenge towards which considerable effort has been directed in research. Methods exploiting self-assembly, in which EM structures and/or device level components are placed in fluid suspensions and deposited on a substrate by electrical/magnetic forces [55], [56], flow fields, [57], [58], or recognition by surface relief structures [37], have been intensively studied. Although they show promise, current capabilities remain less than those required for commercial applications.…”

Section: Fabrication: Printing and Transfer Assembly Methodsmentioning

confidence: 99%

Inorganic Materials and Assembly Techniques for Flexible and Stretchable Electronics

Nuzzo

Rogers

2015

Proc. IEEE

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| In recent years, important progress has been made in developing design strategies, materials, and associated assembly techniques that provide empowering approaches to electronics with unconventional formats, ones that allow useful but previously hard to realize attributes of function. Notable examples of the progress made include: light weight, large area, high performance electronics, optics, and photonics; electronic and optical systems with curvilinear shapes and capacities for accommodating demanding forms of mechanical flexure; new device form factors for use in sensing and imaging; the integration of high performance electronics in 3-D with demanding nanometer design rules; functional bioresponsive electronics; and advanced hybrid materials systems for lighting, energy storage, and photovoltaic energy conversion. In this report we highlight advances that are enabling such promising capabilities in technologyVspecifically, the fabrication of device elements using high performance inorganic electronic materials joined with printing and transfer methods to effect their integration within functional modules.We emphasize in this review considerations of the design strategies and assembly techniques that, when taken together, circumvent limitations imposed by approaches that integrate circuit elements within compact, rigid, and essentially planar form factor devices, and provide a transformational set of capabilities for high performance flexible/stretchable electronics. Fig. 1. Material configurations and structural layouts for flexible/stretchable electronics. (a) Aligned arrays of 1-D Ge/Si core/shell nanowire arrays, here used as the channel materials for active-matrix FETs supported on a polyimide substrate. Reproduced with permission from [28]. Copyright American Chemical Society. (b) Patterned 2-D silicon nanoribbons undercut and delaminated from a Silicon-on-Insulator (SOI) wafer using an isotropic wet-chemical etch of the buried oxide layer. Reproduced with permission from [35]. Copyright The American Association for the Advancement of Science. (c) Ag nanoparticles patterned by direct-ink writing on a paper substrate. Reproduced with permission from [41]. Copyright John Wiley and Sons. (d) Buckled layout of printed silicon ribbons upon release of prestrain in the elastomeric (PDMS) substrate. Reproduced with permission from [35]. Copyright The American Association for the Advancement of Science. (e) Planar Au filamentary serpentine interconnects on an elastomeric substrate before (upper panel) and after (lower panel) compression. Reproduced with permission from [48]. Copyright IEEE. (f) Out-of-plane bridge interconnects for semiconductor circuits illustrating 3-D structural motifs formed by strain-minimizing release dynamics Reproduced with permission from [51]. Copyright National Academy of Sciences, USA. (g) High performance GaAs solar microcells interconnected by filamentary gold wires patterned in an open mesh layout to accommodate large amplitude strain evolution in the supporting substrate. Repro...

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“…Moreover, as AgNW is of one‐dimensional nanostructure, which would show interesting performances while they are aligned in orientations . The alignment can be achieved by electrical field, magnetic field, flow field, surface tension, spatially defined chemical, or physical treatment …”

Section: Introductionmentioning

confidence: 99%

Coating, patterning, and transferring processes of silver nanowire for flexible display and sensing applications

Yang

Liu

Han

et al. 2016

Jnl Soc Info Display

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Silver nanowire (AgNW) has drawn tremendous attention and is regarded as one of the candidate materials for future flexible displays and sensors. Compatible coating, patterning, and transferring processes are essential for device fabrications. We proposed facile solution processes for AgNWs patterning based on wettability, aligning with microchannel, and transferring onto arbitrary substrates to study how it can be used for actual applications. Also, piezoelectric‐type and projected capacitive‐type of touch sensors were demonstrated, respectively.

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A technique for controlling the alignment of silver nanowires with an electric field

Cited by 59 publications

References 18 publications

Electric Field Controlled Self‐Assembly of Hierarchically Ordered Membranes

Electric Field Controlled Self‐Assembly of Hierarchically Ordered Membranes

Inorganic Materials and Assembly Techniques for Flexible and Stretchable Electronics

Coating, patterning, and transferring processes of silver nanowire for flexible display and sensing applications

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