Piezoresistive Response of Quasi-One-Dimensional ZnO Nanowires Using an in Situ Electromechanical Device

Kaps, Sören; Bhowmick, Sanjit; Gröttrup, Jorit; Hrkac, Viktor; Stauffer, Douglas; Guo, Hua; Warren, Oden L.; Adam, Jost; Kienle, Lorenz; Minor, Andrew M.; Adelung, Rainer; Mishra, Yogendra Kumar

doi:10.1021/acsomega.7b00041

Cited by 76 publications

(42 citation statements)

References 71 publications

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“…However, as it was demonstrated later using time-dependent electromechanical measurements, the increased apparent piezoresistive coefficients were actually due to charge trapping and detrapping on the surface of depleted Si, whereas the intrinsic piezoresistvity of the nanostructured material is essentially the same as that of bulk (Milne et al, 2010). Recent studies on semiconducting metal oxide thin films and nanostructures, e.g., on TiO 2 (Fraga et al, 2012), MoO 3 (Wen et al, 2014), and ZnO (Kaps et al, 2017); as well as on layered transition metal dichalcogenides, e.g., MoS 2 (Nayak et al, 2014;Manzeli et al, 2015), MoSe 2 , WSe 2 (Hosseini et al, 2015), and PtSe 2 (Li et al, 2016;Wagner et al, 2018) showed highly strain dependent electronic properties, giving rise to quite high GFs comparable to those of Si and Ge (e.g. 441 for MoO 3 nanobelts, −148 for MoS 2 monolayers or −85 for PtSe 2 thin films).…”

Section: Introductionmentioning

confidence: 86%

Piezoresistive Carbon Foams in Sensing Applications

Kordás

Pitkänen

2019

Front. Mater.

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Mechanical strain sensing is ubiquitous, found in applications such as heart rate monitoring, analysis of body part motion, vibration of machines, dilatation in buildings and large infrastructure, and so forth. Piezoresistive materials and sensors based on those offer versatile and robust solutions to measure strains and displacements and can be implemented even in acceleration and pressure analyses. In this paper, we overview the most prominent piezoresistive materials, and present a case study on carbon foams as well as on their hierarchical hybrid structures with carbon nanotubes/nanofibers. Our results show highly non-linear electrical resistance and mechanical stress dependence on uniaxial strain in both types of materials up to 50% compression. The Young's moduli increase with compressive strain between 1-65 and 0.1-92 kPa for the foam and hierarchical structure, respectively. The foams have giant gauge factors (up to −1000) with large differential gauge factors (on the scale of −10) and differential pressure sensitivity of 0.016 Pa −1 (at 10% strain) making them suitable for detecting both small and large displacements with excellent accuracy of electrical readout as we demonstrate in detecting building wall displacement as well as in monitoring heart rate and flexing of fingers.

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Section: Introductionmentioning

confidence: 86%

Piezoresistive Carbon Foams in Sensing Applications

Kordás

Pitkänen

2019

Front. Mater.

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“…Potential applications of ZnO materials include optical waveguides [17], varistors [18], solid-state lighting [19], gas sensors [20], and transparent conductive films. Because of its wide band gap, ZnO is a promising candidate material for use in solid-state optoelectronics that emit in the blue or ultraviolet (UV) spectral range, including lasers.…”

Section: Introductionmentioning

confidence: 99%

One-Dimensional Zinc Oxide Nanomaterials for Application in High-Performance Advanced Optoelectronic Devices

et al. 2018

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Unlike conventional bulk or film materials, one-dimensional (1D) semiconducting zinc oxide (ZnO) nanostructures exhibit excellent photoelectric properties including ultrahigh intrinsic photoelectric gain, multiple light confinement, and subwavelength size effects. Compared with polycrystalline thin films, nanowires usually have high phase purity, no grain boundaries, and long-distance order, making them attractive for carrier transport in advanced optoelectronic devices. The properties of one-dimensional nanowires-such as strong optical absorption, light emission, and photoconductive gain-could improve the performance of light-emitting diodes (LEDs), photodetectors, solar cells, nanogenerators, field-effect transistors, and sensors. For example, ZnO nanowires behave as carrier transport channels in photoelectric devices, decreasing the loss of the light-generated carrier. The performance of LEDs and photoelectric detectors based on nanowires can be improved compared with that of devices based on polycrystalline thin films. This article reviews the fabrication methods of 1D ZnO nanostructures-including chemical vapor deposition, hydrothermal reaction, and electrochemical deposition-and the influence of the growth parameters on the growth rate and morphology. Important applications of 1D ZnO nanostructures in optoelectronic devices are described. Several approaches to improve the performance of 1D ZnO-based devices, including surface passivation, localized surface plasmons, and the piezo-phototronic effect, are summarized.

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“…Therefore, a perfect control over the quality of ZnO nanomaterial produced is essential to build a high performance electronic device. Different bottom-up growth techniques, including flame transport approach [15][16][17][18], vaporliquid-solid (VLS) [19], electrochemical deposition [20], hydrothermal and/or chemical bath deposition [11,[21][22][23][24] have been utilized for the synthesis of 1D ZnO NWs. Nevertheless, most of the techniques are limited by their high temperature process that cannot be scaled up over large device area at very low cost, on plastic substrates for example.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence Study of the Influence of Additive Ammonium Hydroxide in Hydrothermally Grown ZnO Nanowires

Dahiya¹,

Boubenia²,

Franzò³

et al. 2018

Preprint

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We report the influence of ammonium hydroxide (NH4OH), as growth additive, on zinc oxide nanomaterial through the optical response obtained by photoluminescence (PL). A lowtemperature hydrothermal process is employed for the growth of ZnO nanowires (NWs) on seedless Au surface. A more than two order of magnitude change in ZnO NW density is demonstrated via careful addition of NH4OH in the growth solution. Further, we show by systematic experimental study and PL characterization data that the addition of NH4OH can degrade the optical response of ZnO NWs produced. The increase of growth solution basicity with the addition of NH4OH may slowly degrade the optical response of NWs by slowly etching its surfaces, increasing the point defects in ZnO NWs. The present study demonstrates the importance of growth nutrients to obtain quality controlled density tunable ZnO NWs on seedless conducting substrates.

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Piezoresistive Response of Quasi-One-Dimensional ZnO Nanowires Using an in Situ Electromechanical Device

Cited by 76 publications

References 71 publications

Piezoresistive Carbon Foams in Sensing Applications

Piezoresistive Carbon Foams in Sensing Applications

One-Dimensional Zinc Oxide Nanomaterials for Application in High-Performance Advanced Optoelectronic Devices

Photoluminescence Study of the Influence of Additive Ammonium Hydroxide in Hydrothermally Grown ZnO Nanowires

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