Crossed zinc oxide nanorods for ultraviolet radiation detection

Chai, Guangyu; Lupan, Oleg; Chow, Lee; Heinrich, Helge

doi:10.1016/j.sna.2008.12.020

Cited by 140 publications

(110 citation statements)

References 20 publications

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“…Among the nanostructures above, ZnO nanowires (NWs) are more attractive due to their better carrier conne-ment and high density surface trap states, 11 which can enhance the electrical properties and ultraviolet (UV) photodiodes performance of the devices. 12,13 However, in virtue of the deep acceptor impurity states, low solubility dopants and the selfcompensation effect, the intrinsically n-type semiconductor ZnO is difficult to manufacture with a p-n homo-junction architecture for many electronic and optical devices.…”

Section: Introductionmentioning

confidence: 99%

Improved electrical transport properties of an n-ZnO nanowire/p-diamond heterojunction

et al. 2018

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A heterojunction of n-ZnO nanowire (NW)/p-B-doped diamond (BDD) was fabricated. The rectifying behavior was observed with the turn on voltage of a low value (0.8 V). The forward current at 5 V is 12 times higher than that of a larger diameter n-ZnO nanorod (NR)/p-BDD heterojunction. The electrical transport behaviors for the comparison of n-ZnO NWs/p-BDD and n-ZnO NRs/p-BDD heterojunctions are investigated over various bias voltages. The carrier injection process mechanism for ZnO NWs/BDD is analyzed on the basis of the proposed equilibrium energy band diagrams. The ZnO NWs/BDD heterojunction displays improved I-V characteristics and relatively high performance for the electrical transport properties.

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Section: Introductionmentioning

confidence: 99%

Improved electrical transport properties of an n-ZnO nanowire/p-diamond heterojunction

et al. 2018

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“…As a new type of functional material, ZnO has excellent optical and electrical properties, high chemical and mechanical stability and good heat stability together with nontoxic in nature. With exciton binding energy of 60 meV (the ionization energy of 26 meV at room temperature) and strong ultraviolet stimulated emission, ZnO prepared under different conditions can be applied for various purposes, including laser diodes [1], ultraviolet detectors [2], gas sensors [3], transparent electrode [4,5], electroluminescent material [6,7], surface acoustic wave devices [8], etc. ZnO, following GaN, has become a new focus of the research on the wide band-gap semiconductor.…”

Section: Introductionmentioning

confidence: 99%

The microstructure and photoluminescence of Cu-doped ZnO nano-crystal thin films prepared by sol–gel method

Wang

Zhou

Liu

2009

Journal of Alloys and Compounds

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“…With TEM characterization we found that the nanorods and branched microrods were straight and with a smooth surface [4]. By employing a similar technique, different morphologies of ZnO nano-and microarchitectures were grown as reported in a previous work [5]. [ …”

Section: Experimental Details On Growth Of Pure Zno Nano-and Microstrmentioning

confidence: 57%

Synthesis and gas sensor applications of nanostructured ZnO grown at low temperatures

Lupan¹,

Pauporté²,

Chow³

2014

Turk J Phys

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ZnO nanoarchitecture-based nano-and microdevices came into the focus due to their multifunctional operation. In this work, we summarize cost-effective procedures to grow ZnO nano-and microstructures, namely hydrothermal growth and electrochemical deposition. These techniques allow the controllable growth of ZnO nano-and microarchitectures at relatively low temperatures, below 100• C, and do not require sophisticated equipment. We report on technological details for synthesis of ZnO and its characterization and applications in different novel devices such as gas sensors. Nanosensors and microsensors were fabricated using a focused ion beam and by metal welding an individual nano-and microstructure to form rigid contacts. Devices made from pure and doped ZnO nanostructures are presented and discussed. Developed nano-and microdevice structures show promising performances and are quite attractive for further investigations in sensor applications. Several factors determine the gas sensing mechanism of pure and dopedZnO micro-and nanowire/nanorods and discussions on this are summarized.

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Crossed zinc oxide nanorods for ultraviolet radiation detection

Cited by 140 publications

References 20 publications

Improved electrical transport properties of an n-ZnO nanowire/p-diamond heterojunction

Improved electrical transport properties of an n-ZnO nanowire/p-diamond heterojunction

The microstructure and photoluminescence of Cu-doped ZnO nano-crystal thin films prepared by sol–gel method

Synthesis and gas sensor applications of nanostructured ZnO grown at low temperatures

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