Low Leakage Current ZnO Nanowire Schottky Photodiodes Built by Dielectrophoretic Contact

Pau, J. L.; Waters, Joseph; Rivera, Elmer Ccopa; Kim, Seongsin M.; Kung, Patrick

doi:10.1109/led.2015.2442678

Cited by 8 publications

(9 citation statements)

References 12 publications

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“…These multiple individual nanowires could be selected according to their electrical characteristics and precisely positioned at different locations in a low‐conductivity liquid to form functional nanodevices with desired electrical properties. In addition, there are numerous other relevant excellent researches based on DEP manipulation of one‐dimensional nanomaterials, which are not be discussed in detail here .…”

Section: Dielectrophoretic Manipulation Of Nanomaterialsmentioning

confidence: 99%

Dielectrophoretic manipulation of nanomaterials: A review

et al. 2018

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Nanomaterials manipulation using dielectrophoresis (DEP) is one of the major research areas that could potentially benefit the micro/nano science for diverse applications, such as microfluidics, nanomachine, and biosensor. The innovation and development of basic theories, methods or applications will have a huge impact on the entire related field. Specifically, for DEP manipulation of nanomaterials, improvements in comprehensive performance of accuracy, flexibility and scale could promote broader applications in micro/nano science. Therefore, to explore the directions for future research, this paper critically provides an overview on the fundamentals, recent progress, current challenges, and potential applications of DEP manipulation of nanomaterials. This review will also act as a guide and reference for researchers to explore promising applications in relevant research.

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Section: Dielectrophoretic Manipulation Of Nanomaterialsmentioning

confidence: 99%

Dielectrophoretic manipulation of nanomaterials: A review

et al. 2018

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“…In which, the significant reduction of dark current could improve the sensitivity of sensors. The rectifying I-V characteristics of devices that include both a pn junction and Schottky contact diodes could achieve this purpose [11][12][13][14][15][16]. The use of a Schottky diode can not only improve the sensitivity of the devices but can also reduce the response time.…”

Section: Introductionmentioning

confidence: 99%

“…For example, one end of ZnO nanowire is brought into contact with a Cu or Pt electrode by dielectrophoretic deposition, placing or e-beam lithography methods are used to make a Schottky contact, and the other end is formed an Ohmic contact through the deposition of Pt/Ga using FIB. [11][12][13] Dielectrophoresis (DEP) is one of the methods that is commonly used to align NWs in the fabrication of sensors in metal-semiconductor-metal structures because it is a simple, low-cost method and can be used not only for single NW alignment but also for the large-area alignment of multi-segmented NWs. Dielectric NWs can align precisely across electrodes when NWs are subjected to a non-uniform electric filed that is generated by an alternating current (AC).…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Rectification Nanosensors by Direct Current Dielectrophoresis Alignment of ZnO Nanowires

2021

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This work demonstrates the fabrication and characterization of ZnO nanowire-based devices in a metal–nanowire–metal configuration using the direct current dielectrophoresis alignment across Au electrodes. The current–voltage characteristics of the devices revealed that they were rectifying, and the direction of rectification was determined by the direction of current due to the asymmetric Joule heating in the dielectrophoresis alignment process. Joule heating caused the Au atoms to diffuse from the Au electrodes to the inner ZnO NWs and the formation of Schottky contact at the Au/ZnO interface. A fast and sensitive photoresponse was achieved for the rectifying devices in reverse-biased mode due to the carrier injection and photocurrent gain under UV illumination. Such direct current dielectrophoresis alignment of ZnO nanowires is a facile method for fabricating rectification devices with application in sensitive and fast UV detecting sensors.

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“…It may also contribute to discovering the nature of living systems [18][19][20]. To engineers, on the other hand, it is a source of useful and effective technique to separate materials or improve their behaviour [21][22][23]. Especially for human exploration of space, a detailed understanding of lunar and Martian dust dynamics is needed for designing and implementing dust hazard mitigation methods to facilitate successful missions to the Moon and Mars [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on effects of surface morphologies on corona characteristics of conductors subjected to positive DC voltages

Zhu

et al. 2020

High Voltage

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As the surface conditions play a significant role on corona discharge and its related effects of the conductors, the influence of fine particulate matter on positive‐polarity, direct‐current conductors was studied experimentally in this study. The surface morphologies of the conductor could be discovered from the experiments. The typical morphologies are the parallel chains of particles. To evaluate the surface condition quantitively, the surface roughness of the conductors is measured. It is found that the applied voltage and testing time have a great influence on the surface condition. After that, the corona characteristics of conductors are tested. It reveals that the total ground level electric field and ion flow density increases with the surface roughness growing.

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Low Leakage Current ZnO Nanowire Schottky Photodiodes Built by Dielectrophoretic Contact

Abstract: Esta es la versión de autor del artículo publicado en: This is an author produced version of a paper published in:

Cited by 8 publications

References 12 publications

Dielectrophoretic manipulation of nanomaterials: A review

Dielectrophoretic manipulation of nanomaterials: A review

Fabrication of Rectification Nanosensors by Direct Current Dielectrophoresis Alignment of ZnO Nanowires

Experimental studies on effects of surface morphologies on corona characteristics of conductors subjected to positive DC voltages

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