Vertical Transfer of Uniform Silicon Nanowire Arrays via Crack Formation

Weisse, Jeffrey M.; Kim, Dong Rip; Lee, Chi Hwan; Zheng, Xiaolin

doi:10.1021/nl104362e

Cited by 77 publications

(92 citation statements)

References 39 publications

(96 reference statements)

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“…And vertical transfer of Si nanowire arrays with uniform length onto adhesive substrates was realized by the assistance of creating a horizontal crack formed by adding a water soaking step between consecutive Ag-assisted electroless etching processes of Si. 83 Furthermore, aligned GaAs NWs 84 and even polymer nanowire arrays 85 can also be obtained by vertical growth. Also, by thermal evaporation of a ZnO:C powder, the effect of the powder source temperature and substrate temperature during the process of ZnO NWs growth has been analyzed.…”

Section: Direct Growth Of Vertical Nanowire Arraysmentioning

confidence: 99%

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

et al. 2012

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Semiconducting inorganic nanowires (NWs), nanotubes and nanofibers have been extensively explored in recent years as potential building blocks for nanoscale electronics, optoelectronics, chemical/biological/ optical sensing, and energy harvesting, storage and conversion, etc. Besides the top-down approaches such as conventional lithography technologies, nanowires are commonly grown by the bottom-up approaches such as solution growth, template-guided synthesis, and vapor-liquid-solid process at a relatively low cost. Superior performance has been demonstrated using nanowires devices. However, most of the nanowire devices are limited to the demonstration of single devices, an initial step toward nanoelectronic circuits, not adequate for production on a large scale at low cost. Controlled and uniform assembly of nanowires with high scalability is still one of the major bottleneck challenges towards the materials and device integration for electronics. In this review, we aim to present recent progress toward nanowire device assembly technologies, including flow-assisted alignment, Langmuir-Blodgett assembly, bubble-blown technique, electric/magnetic-field-directed assembly, contact/roll printing, planar growth, bridging method, and electrospinning, etc. And their applications in high-performance, flexible electronics, sensors, photovoltaics, bioelectronic interfaces and nano-resonators are also presented.

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Section: Direct Growth Of Vertical Nanowire Arraysmentioning

confidence: 99%

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

et al. 2012

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“…In another method, the occurrence of horizontal cracks in silicon nanowires was used advantageously in the transfer process, enabling them to be broken from the substrate more easily. 18 This method is limited, however, to silicon nanowires made by metalassisted etching. Shear forces have been used for transferring nano-and microwires.…”

mentioning

confidence: 99%

Adding colors to polydimethylsiloxane by embedding vertical silicon nanowires

2012

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“…Inspired by the metal nanoparticles' etching of Si wafer [19,20], we assembled Ag nanoparticles into a necklace with dense "hot spots" spread in 3-dimension by sacrificing SiNWs templates. Meanwhile, due to the facile transfer and high adhesion between the SiNWs and flexible PDMS films, AgNLs could be located on the surface of PDMA on the fixed position.…”

Section: Resultsmentioning

confidence: 99%

“…As sacrificial templates, SiNWs determines the location and orientation of the final AgNLs (SI, S3). Since the fabrication of SiNWs is well developed and the controlled transfer of SiNWs is obtained by contact printing, the site-specific synthesis of AgNLs or their arrays could also be realized [19][20][21][22][23]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Flexible SERS active detection from novel Ag nano-necklaces as highly reproducible and ultrasensitive tips

et al. 2016

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Surface-enhanced Raman scattering (SERS) spectroscopy has been considered as a promising way to realize real-time, in-situ and ultrasensitive analysis of chemoand biochemical molecules in different applications even in intracellular or aqueous environments. In this work, polymer-supported novel Ag nano-necklaces (AgNLs) as flexible SERS substrates were fabricated for ultrasensitive chemical and biological detection. With the stringing of dense "hot spot" in three-dimension, AgNLs located on polydimethylsiloxane (PDMS) work like the removable and reusable "tip" on the surface of analytes with different morphologies and conditions. The novel substrate shows ultra-high enhancement factor (as high as 10 9 ) with excellent reproducibility and long-term stability (7 months) in an aqueous environment. With further functionalizing with p-mercaptobenzoic acid, AgNLs/PDMS elastomer also reveals sensitive and consistent pH detection ability over the wide range of pH 4.0-9.0, indicating their wide applications in biological and environmental fields. This work provides a feasible strategy for designing ultrasensitive, reproducible and flexible SERS substrate for practical detection.

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Vertical Transfer of Uniform Silicon Nanowire Arrays via Crack Formation

Cited by 77 publications

References 39 publications

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics

Adding colors to polydimethylsiloxane by embedding vertical silicon nanowires

Flexible SERS active detection from novel Ag nano-necklaces as highly reproducible and ultrasensitive tips

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