Review on one-dimensional nanostructures prepared by electrospinning and atomic layer deposition

Szilágyi, Imre Miklós; Nagy, D.

doi:10.1088/1742-6596/559/1/012010

Cited by 37 publications

(32 citation statements)

References 81 publications

(69 reference statements)

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“…Therefore, already various techniques have been adopted to fabricate nanostructured oxide materials. Among the reported nanostructures, nanofibers have received immense attention due to their high surface-to-volume ratio, combined with their good mechanical and physical properties [6][7].…”

Section: Introductionmentioning

confidence: 99%

TiO2/ZnO and ZnO/TiO2 core/shell nanofibers prepared by electrospinning and atomic layer deposition for photocatalysis and gas sensing

Boyadjiev

Kéri

Bárdos

et al. 2017

Applied Surface Science

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Abstract:In the present work, core TiO 2 and ZnO oxide nanofibers were prepared by electrospinning, then shell oxide (ZnO, TiO 2 ) layers were deposited on them by atomic layer deposition (ALD). The aim of preparing ZnO and TiO 2 nanofibers, as well as ZnO/TiO 2 and 3 TiO 2 /ZnO nanocomposites is to study the interaction between the oxide materials when a pure oxide fiber is covered with thin film of the other oxide, and explore the influence of exchanging the core and shell materials on their photocatalytic and gas sensing properties.The composition, structure and morphology of the pure and composite nanofibers were studied by SEM-EDX, TEM, XRD, FTIR, UV-Vis and Raman. The photocatalytic activity of the as-prepared materials was analyzed by UV-Vis spectroscopy through decomposing aqueous methyl orange under UV irradiation. The gas sensing of the nanofibers was investigated by detecting 100 ppm NH 3 at 150 and 220 °C using interdigital electrode based sensors.

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Section: Introductionmentioning

confidence: 99%

TiO2/ZnO and ZnO/TiO2 core/shell nanofibers prepared by electrospinning and atomic layer deposition for photocatalysis and gas sensing

Boyadjiev

Kéri

Bárdos

et al. 2017

Applied Surface Science

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“…With these advantages, ALD became a powerful tool for many industrial and research applications [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of ALD deposited ZnO thin films studied for gas sensors

Boyadjiev

Георгиева

Yordanov

et al. 2016

Applied Surface Science

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Abstract. Applying atomic layer deposition (ALD) very thin zinc oxide (ZnO) films were deposited on quartz resonators, and their gas sensing properties were studied using the quartz crystal microbalance (QCM) method. The gas sensing of the ZnO films to NO 2 was tested in the concentration interval between 10 and 5000 ppm. On the basis of registered frequency change of the QCM, for each concentration the sorbed mass was calculated. Further characterization of the films was carried out by various techniques, i.e. by SEM-EDS, XRD, ellipsometry, and FTIR spectroscopy. Although being very thin, the films were gas sensitive to NO2 already at room temperature and could register very well as low concentrations as 100 ppm, while the sorption was fully reversible. Our results for very thin ALD ZnO films show that the described fast, simple 3 and cost-effective technology could be implemented for producing gas sensors working at room temperature and being capable to register in real time low concentrations of NO 2 .

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“…ALD film growth frequently occurs at lower temperatures compared to CVD processes because of the elimination of the gas-phase reactions. In ALD there is no shadow effect, which might reduce the growth rate if there is an object between the source and the target [52][53][54][55][56].…”

Section: Atomic Layer Depositon (Ald)mentioning

confidence: 99%

Technologies for deposition of transition metal oxide thin films: application as functional layers in “Smart windows” and photocatalytic systems

Gesheva

Ivanova

Bodurov

et al. 2016

J. Phys.: Conf. Ser.

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Abstract. "Smart windows" are envisaged for future low-energy, high-efficient architectural buildings, as well as for the car industry. By switching from coloured to fully bleached state, these windows regulate the energy of solar flux entering the interior. Functional layers in these devices are the transition metals oxides. The materials (transitional metal oxides) used in smart windows can be also applied as photoelectrodes in water splitting photocells for hydrogen production or as photocatalytic materials for self-cleaning surfaces, waste water treatment and pollution removal. Solar energy utilization is recently in the main scope of numerous world research laboratories and energy organizations, working on protection against conventional fuel exhaustion. The paper presents results from research on transition metal oxide thin films, fabricated by different methods -atomic layer deposition, atmospheric pressure chemical vapour deposition, physical vapour deposition, and wet chemical methods, suitable for flowthrough production process. The lower price of the chemical deposition processes is especially important when the method is related to large-scale glazing applications. Conclusions are derived about which processes are recently considered as most prospective, related to electrochromic materials and devices manufacturing. Transition metal oxidesTransition metal oxides (TMO) are claimed to be one of the most interesting classes of solids, exhibiting varieties of properties, structures and applications [1]. Their properties are determined by the unique nature of their outer d-electrons. Transition-metal oxides can be insulators, semiconductors, metals, or undergo semiconductor-metal transitions. Transition metal oxides possess unusual and useful electronic, optical and magnetic properties. Many of these properties strongly depend on materials defects like vacancies, dislocations, stacking faults and grain boundaries [2].

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Review on one-dimensional nanostructures prepared by electrospinning and atomic layer deposition

Cited by 37 publications

References 81 publications

TiO2/ZnO and ZnO/TiO2 core/shell nanofibers prepared by electrospinning and atomic layer deposition for photocatalysis and gas sensing

TiO2/ZnO and ZnO/TiO2 core/shell nanofibers prepared by electrospinning and atomic layer deposition for photocatalysis and gas sensing

Preparation and characterization of ALD deposited ZnO thin films studied for gas sensors

Technologies for deposition of transition metal oxide thin films: application as functional layers in “Smart windows” and photocatalytic systems

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