Comparative Study of Energy Harvesting from ZnO Nanorods Using Different Flexible Substrates

Hussain, Mushtaque; Abbasi, Mazhar Ali; Khan, Azam; Nur, Omer; Willander, Magnus

doi:10.1515/ehs-2013-0025

Cited by 7 publications

(5 citation statements)

References 33 publications

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“…Furthermore, the density and the alignment of the NWs could be improved with the larger crystal size of the seed layer as shown in the two-dimensional (2D) AFM images of the surfaces of different seed layers (Figure 7a–c). It was reported that the alignment and density are essential morphological characteristics of the NWs, and these characteristics have a crucial role in the properties of the NW-based devices [46,49,50].…”

Section: Resultsmentioning

confidence: 99%

A Comparative Study on the Effects of Au, ZnO and AZO Seed Layers on the Performance of ZnO Nanowire-Based Piezoelectric Nanogenerators

et al. 2019

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In this study, different seed layers like gold (Au), zinc oxide (ZnO) and aluminum-doped ZnO (AZO) have been associated to ZnO nanowires (NWs) for the development of mechanical energy harvesters. ZnO NWs were grown by using a low temperature hydrothermal method. The morphological properties were investigated using Scanning Electron Microscopy (SEM) and the analysis of crystalline quality and growth orientation was studied using X-ray Diffraction (XRD). The obtained ZnO NWs are found to be highly dense, uniformly distributed and vertically well aligned on the ZnO and AZO seed layers, while ZnO NWs grown on Au possess a low density and follow a non-uniform distribution. Moreover, the NWs exhibited good crystal quality over the seed layers. The piezoelectric nanogenerator (PENG) consists of ZnO NWs grown on the three different seed layers, parylene-C matrix, Ti/Al top electrode and poly(dimethylsiloxane) (PDMS) encapsulated polymer composite. The measurements of the open circuit voltage (VOC) were around 272 mV, 36 mV for ZnO, AZO seed layers while the PENG including Au seed layer presented a short-circuited state. This study is an important step in order to investigate the effect of different seed layers influencing the magnitude of the generated electrical performances under identical growth and measurement conditions. It will also help identify the most suitable seed layers for energy harvesting devices and their future integration in industrial applications.

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Section: Resultsmentioning

confidence: 99%

A Comparative Study on the Effects of Au, ZnO and AZO Seed Layers on the Performance of ZnO Nanowire-Based Piezoelectric Nanogenerators

et al. 2019

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“…Therefore, the PLZT-based materials are photoactive and can be used not only to harvest vibration energy (like other piezoelectric materials) but also can be used to harvest light and thermal energy. Other wide band materials such as zinc oxide have also been used for thermal energy harvesting (Zhao et al 2014;Hussain et al 2014;Feldhoff and Geppert 2014).…”

Section: Introductionmentioning

confidence: 99%

Opto-electrical Behavior of Pb(Zn1/3Nb2/3)O3–Pb0.97La0.03(Zr,Ti)O3 Transparent Ceramics with Varying Defect Structure

Kumar

Maurya

Zhou

et al. 2018

Energyo

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We report correlation between the electromechanical, ferroelectric, optical and opto-electric behavior in Pb(Zn 1/3 Nb 2/3 )O 3 -Pb 0.97 La 0.03 (Zr,Ti)O 3 transparent ceramics. Optical interaction during current-voltage (I-V) measurements enhanced the current output and revealed its strong dependence on wavelength and power of the impinging radiation. Piezoresponse force microscopy revealed that the improved characteristics at low stoichiometric excess of various elements were related to nano-sized stripe domains. Raman analysis indicated the presence of short-range clusters with rhombohedral-tetragonal phase distributed at much above the Curie temperature. The results reveal the potential of these ceramics in wireless opto-electric devices operating over a wide-range of wavelengths and temperatures. These classes of ceramics have successfully demonstrated in literature for use in pyroelectric generators and UV light energy harvesting, piezoelectric transformers.

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“…To prepare the desired ZnO NSs, there exist many approaches including low and high temperatures [13, 14]. The relatively low temperature (< 100°C) aqueous chemical growth (ACG) method is better than other methods because a very low growth temperature is more suitable for soft/foldable substrates such as common paper, textile fabrics, flexible plastic and aluminium foil [15]. Furthermore, this method is relatively simple to adopt and of low cost, therefore it can also be used in bulk production.…”

Section: Introductionmentioning

confidence: 99%

Use of ZnO nanorods grown atomic force microscope tip in the architecture of a piezoelectric nanogenerator

Hussain¹,

Khan²,

Abbasi³

et al. 2014

Micro & Nano Letters

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The piezoelectric potential output has been studied using a ZnO nanorods (NRs) grown atomic force microscope (AFM) tip in lieu of the normally used AFM tip. The ZnO NRs were synthesised on the AFM tip and on the fluorine-doped tin oxide (FTO) glass substrate using the aqueous chemical growth method. The as-grown ZnO NRs were highly dense, well aligned and uniform both on the tip and on the substrate. The structural study was performed using X-ray diffraction and scanning electron microscopy techniques. The piezoelectric properties of as-grown ZnO NRs were investigated using an AFM in contact mode. In comparison to the AFM tip without ZnO NRs, extra positive voltage peaks were observed when the AFM tip with ZnO NRs was used. The pair of ZnO NRs on the AFM tip and on the FTO glass substrate together worked as two oppositely gliding walls (composed of ZnO NRs) and showed an enhancement in the amount of the harvested energy as much as eight times. This approach demonstrates that the use of the AFM tip with ZnO NRs is not only a good alternative to improve the design of nanogenerators to obtain an enhanced amount of harvested energy but is also simple, reliable and cost-effective.1. Introduction: Owing to increasing use of energy, it is highly desirable to explore/improve different resources of energy to fill the gap between the demand for and the supply of energy. One possible approach that has the potential to fill (partially) this gap is the use of nanostructures to modify/design/develop self-powered nanodevices that can harvest their operating energy from the environment. Since all the systems that exist at present are fully dependent on a power source (normally a small-sized battery), it is extremely worthwhile to keep the size of the battery as small as possible. However, the reduced size of the battery will affect its lifetime. Therefore, the key requirement is to build such self-powered nanosystems that are not only able to scavenge their desired energy from the environment but also work independently with an uninterrupted supply of energy. Scientists and researchers have tried hard to explore different ways and means to harvest energy from the environment just by converting mechanical, vibrational or thermal energy into electricity [1]. This type of energy becomes more important when the available sources of energy are expensive or insufficient. Designing a nanogenerator (NG) in such a way that it can convert mechanical energy into electric energy by utilising the piezoelectric effect is an approach that has been developed in the recent past [2][3][4]. This kind of piezoelectric NG would not only be helpful for developing new nanodevices but can be utilised to build self-powered systems as well. This is why in recent years a lot of work has been done, first to fabricate these NGs, and then to improve their performance either by enhancing/increasing their efficiency in terms of harvested energy or by minimising the cost or by improving their reliability etc.

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Comparative Study of Energy Harvesting from ZnO Nanorods Using Different Flexible Substrates

Cited by 7 publications

References 33 publications

A Comparative Study on the Effects of Au, ZnO and AZO Seed Layers on the Performance of ZnO Nanowire-Based Piezoelectric Nanogenerators

A Comparative Study on the Effects of Au, ZnO and AZO Seed Layers on the Performance of ZnO Nanowire-Based Piezoelectric Nanogenerators

Opto-electrical Behavior of Pb(Zn1/3Nb2/3)O3–Pb0.97La0.03(Zr,Ti)O3 Transparent Ceramics with Varying Defect Structure

Use of ZnO nanorods grown atomic force microscope tip in the architecture of a piezoelectric nanogenerator

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