Growth of ZnO nanorods on patterned templates for efficient, large-area energy scavengers

Niarchos, G.; Makarona, Eleni; Tsamis, C.

doi:10.1007/s00542-010-1030-z

Cited by 15 publications

(9 citation statements)

References 16 publications

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“…As long as the substrate surface is locally flat to promote the vertical alignment of the ZnO nanowires [91], as shown in Fig. 8(c) [91,143]. X-ray diffraction studies showed the as-deposited polycrystalline Au thin films were <111> oriented normal to the substrate, even though they had random in-plane orientations [82].…”

Section: Au Coated General Substratesmentioning

confidence: 99%

One-dimensional ZnO nanostructures: Solution growth and functional properties

2011

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One-dimensional (1D) ZnO nanostructures have been studied intensively and extensively over the last decade not only for their remarkable chemical and physical properties, but also for their current and future diverse technological applications. This article gives a comprehensive overview of the progress that has been made within the context of 1D ZnO nanostructures synthesized via wet chemical methods. We will cover the synthetic methodologies and corresponding growth mechanisms, different structures, doping and alloying, positioncontrolled growth on substrates, and finally, their functional properties as catalysts, hydrophobic surfaces, sensors, and in nanoelectronic, optical, optoelectronic, and energy harvesting devices.

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Section: Au Coated General Substratesmentioning

confidence: 99%

One-dimensional ZnO nanostructures: Solution growth and functional properties

2011

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“…For example, Niarchos et al used an alternative aqueous chemical growth (ACG) process to investigate a reliable and low-cost method, and they could grow large-scale ZnO nanorods on patterned Si substrates by a low-temperature process. (8) Li et al used Zn foil and an aqueous Na 2 C 2 O 4 solution to successfully synthesize ultralong ZnO nanowires by a simple hydrothermal reaction at 140 °C. (9) They also found that the grown ZnO nanowires could be used as sensors for NH 3 and N(C 2 H 5 ) 3 vapors, and showed excellent response characteristics towards low concentrations of NH 3 and N(C 2 H 5 ) 3 vapors.…”

Section: Introductionmentioning

confidence: 99%

Effects of Deposition Parameters of Hydrothermal Method on Synthesis of ZnO-based Nanowires

Wei¹,

Chung²,

Yang³

et al. 2019

Sensors and Materials

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(NO 3) 2 ‧6H 2 O, ZnO-based nanowires, growth time ZnO-based nanomaterials can be used as sensors for different applications, including gas and ultraviolet (UV) ray sensors. To grow ZnO nanowires by the hydrothermal method, a ZnO seed layer was prepared by a sputtering method to deposit ZnO films on SiO 2 /Si substrates of about 200 nm thickness. Next, Zn(NO 3) 2 ‧6H 2 O and C 6 H 12 N 4 were used as reagents, and DI water was used as a solvent, and they were mixed to the designed compositions. We found that when Zn(NO 3) 2 ‧6H 2 O and C 6 H 12 N 4 were used as reagents to grow ZnO nanostructured materials, growth temperature, the concentration of the diluted solution, growth time, and the position of the substrates were four important factors affecting the synthesis results. The surface morphologies of ZnO nanowires were observed by field-emission scanning electron microscopy (FESEM), and crystalline phases were analyzed using X-ray diffraction (XRD) patterns. The FESEM images and XRD patterns were used to determine the effects of synthesis parameters on the morphologies and crystalline properties of the grown nanostructured materials. First, we found that 100 ℃ was the optimum synthesis temperature for growing pure ZnO nanowires, because ZnO-based nanowires could be successfully synthesized at different concentrations of Zn(NO 3) 2 ‧6H 2 O and C 6 H 12 N 4 and different synthesis times. The effects of growth time, the position of the substrates on the carry sheet glass, and concentrations of Zn(NO 3) 2 ‧6H 2 O and C 6 H 12 N 4 on the growth of nanostructured materials were also investigated.

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“…The proposed methodology is fully compatible with mainstream microfabrication techniques, and has thus the potential for fast laboratory-to-market times and easy transfer to mass-production. It has at its core the hydrothermal growth of ZnO nanostructures, which is a very versatile method allowing the control of the morphological characteristics of the nanostructures through tuning of simple key environmental parameters [ 27 , 28 , 29 ]. In addition, this method is facile, rapid, of extremely low cost and can be applied to a variety of substrates ranging from conventional Si wafers to flexible substrates such as Kapton [ 30 ], PDMS (poly(dimethylsiloxane)) [ 31 ], and PET (polyethylene terephthalate) [ 32 ]) as well as less conventional materials such as wood [ 33 ], paper [ 34 ], and textiles [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

ZnO Nanostructure Templates as a Cost-Efficient Mass-Producible Route for the Development of Cellular Networks

et al. 2016

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The development of artificial surfaces which can regulate or trigger specific functions of living cells, and which are capable of inducing in vivo-like cell behaviors under in vitro conditions has been a long-sought goal over the past twenty years. In this work, an alternative, facile and cost-efficient method for mass-producible cellular templates is presented. The proposed methodology consists of a cost-efficient, two-step, all-wet technique capable of producing ZnO-based nanostructures on predefined patterns on a variety of substrates. ZnO—apart from the fact that it is a biocompatible material—was chosen because of its multifunctional nature which has rendered it a versatile material employed in a wide range of applications. Si, Si3N4, emulated microelectrode arrays and conventional glass cover slips were patterned at the micrometer scale and the patterns were filled with ZnO nanostructures. Using HeLa cells, we demonstrated that the fabricated nanotopographical features could promote guided cellular adhesion on the pre-defined micron-scale patterns only through nanomechanical cues without the need for further surface activation or modification. The basic steps of the micro/nanofabrication are presented and the results from the cell adhesion experiments are discussed, showing the potential of the suggested methodology for creating low-cost templates for engineered cellular networks.

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Growth of ZnO nanorods on patterned templates for efficient, large-area energy scavengers

Cited by 15 publications

References 16 publications

One-dimensional ZnO nanostructures: Solution growth and functional properties

One-dimensional ZnO nanostructures: Solution growth and functional properties

Effects of Deposition Parameters of Hydrothermal Method on Synthesis of ZnO-based Nanowires

ZnO Nanostructure Templates as a Cost-Efficient Mass-Producible Route for the Development of Cellular Networks

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