Controllable assembly and properties of ZnO nanowires

Zhao, Bo; Wang, Nan; Jiang, Guohua

doi:10.1108/mi-11-2014-0046

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…From the (002) plane, the ZnO NWs could be proved growing preferentially toward the (001) (Liu and Zhou, 2004). When the high-frequency AC nonuniformed electric field is applied to the microelectrodes, the DEP force becomes an impetus for the ZnO NWs to be oriented and aligned (Zhao et al, 2015). Through the DEP process, the ZnO NWs are controllably assembled between the microelectrodes.…”

Section: Resultsmentioning

confidence: 99%

ZnO nanowire UV photodetector with multiple channels

Jiang

Zhao

2018

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Purpose The purpose of this paper is to investigate the optoelectronic properties of the multichannel ZnO UV photodetectors. Design/methodology/approach ZnO nanowires were assembled by dielectrophoresis for the UV photodetectors. Different ZnO channels were adjusted by different alternating current voltages and investigated for UV optoelectronic properties. Findings The number of the ZnO channels increases with the enhancing alternating current voltage. Optimum performance of the UV photodetectors is obtained with more channels. Originality/value Dielectrophoresis is a promising method for controllable assembly of multichannel ZnO photodetectors. ZnO photodetectors with more channels demonstrate a good response to 380-nm UV light, which shows great potential application in UV photodetector.

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Section: Resultsmentioning

confidence: 99%

ZnO nanowire UV photodetector with multiple channels

Jiang

Zhao

2018

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“…ZnO NW are ideal for the fabrication of NG because of its large exciton binding energy, ideal band gap, biocompatibility, bio-safety, environment-friendly and uniform growth on both convention and non-convention substrates (Zhao et al , 2015). It has diverse and abundant configurations of nanostructure such as NW, nanorods, nanoflowers, nanosprings and nanorings (Wang et al , 2012).…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of piezoelectric nanogenerator based on Al/ZnO/Au structure

Zafar

Awais

Asif

et al. 2017

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Purpose The purpose of this research work is to harvest energy using the piezoelectric properties of ZnO nanowires (NW). Fabrication and characterization of the piezoelectric nanogenerator (NG), based on Al/ZnO/Au structure without using hosting layer, were done to harvest energy. The proposed method has full potential to harvest the cost-effective energy. Design/methodology/approach ZnO NW were fabricated between the thin layers of Al- and Au-coated substrates for the development of piezoelectric NG. To grow ZnO NW, ZnO seed layer was prepared on the Al-coated substrate, and then ZnO NW were grown by aqueous chemical growth method. Finally, Au top electrode was used to conclude the Al/ZnO/Au NG structure. The Al and Au electrodes were used to establish the ohmic and Schottky contacts with ZnO NW, respectively. Findings Surface morphology of the fabricated device was done by using scanning electron microscopy, and electrical characterization of the sample was performed with digital oscilloscope, picoammeter and voltmeter. The energy harvesting experiment was performed to excite the presented device. The fabricated piezoelectric-sensitive device revealed the maximum open circuit voltage up to 5 V and maximum short circuit current up to 30 nA, with a maximum power of 150 nW. Consequently, it was also shown that the output of the fabricated device was increased by applying the stress. The presented work will help for the openings to capture the mechanical energy from the surroundings to power up the nano/micro-devices. This research work shows that NGs have the competency to build the self-powered nanosystems. It has potential applications in biosensing and personal electronics. Originality/value The fabrication of simple and cost-effective piezoelectric NG is done with a structure of Al/ZnO/Au without using hosting layer. The presented method elucidates an efficient and cost-effective approach to harvest the mechanical energy from the native environment.

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A retrospect on the role of piezoelectric nanogenerators in the development of the green world

Jiji

2017

RSC Adv.

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This paper gives a detailed report of the evolution and potential applications of piezoelectric nanogenerators (PENGs). Various configurations, together with the operating principles and techniques used for the fabrication of PENGs, are discussed. A brief overview of the wide range of materials used for the design of PENGs that exhibit piezoelectric properties is also reported here. The optimization parameters to be considered while designing a PENG are also presented. PENGs are used in several application areas, which are collectively summarized.

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Controllable assembly and properties of ZnO nanowires

Cited by 3 publications

References 11 publications

ZnO nanowire UV photodetector with multiple channels

ZnO nanowire UV photodetector with multiple channels

Fabrication and characterization of piezoelectric nanogenerator based on Al/ZnO/Au structure

A retrospect on the role of piezoelectric nanogenerators in the development of the green world

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