Thickness influence on surface morphology and ozone sensing properties of nanostructured ZnO transparent thin films grown by PLD

Christoulakis, S.; Suchea, M.; Koudoumas, E.; Katharakis, M.; Katsarakis, N.; Kiriakidis, G.

doi:10.1016/j.apsusc.2005.12.071

Cited by 74 publications

(50 citation statements)

References 19 publications

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“…3a) and the corresponding rms roughness, as high as 42 nm. [1,[31][32][33][34][35] Since the effective surface area is typically larger for a rough surface, [10][11] the obtainment of such morphology might be an interesting starting point in view of possible photocatalytic or gas sensing applications. In the case of precursor 1, a further increase in the substrate temperature to 700 8C led to the formation of a film composed of interconnected aggregates (average size % 100 nm), resulting in a more compact crosssectional assembly and an appreciably lower overall thickness.…”

Section: Resultsmentioning

confidence: 99%

MOCVD of ZnO Films from Bis(Ketoiminato)Zn(II) Precursors: Structure, Morphology and Optical Properties

Bekermann

Ludwig

Toader

et al. 2011

Chemical Vapor Deposition

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Two closely related bis(ketoiminato) zinc precursors, which are air stable and possess favorable properties for metal-organic (MO)CVD, are successfully employed for the growth of ZnO films on silicon and borosilicate glass substrates at temperatures between 400 and 700°C. The as-deposited films are investigated by X-ray diffraction (XRD), field emission scanning electron\ud microscopy (FESEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), nuclear reaction analysis\ud (NRA), as well as by UV-vis absorption spectroscopy and photoluminescence (PL) measurements. The structure, morphology,\ud and composition of the as-grown films show a strong dependence on the substrate temperature. The formation of pure and\ud (001)-oriented wurtzite-type stoichiometric ZnO is observed. PL measurements are performed both at room temperature and\ud 77 K, revealing a defect-free emission of ZnO films

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Section: Resultsmentioning

confidence: 99%

MOCVD of ZnO Films from Bis(Ketoiminato)Zn(II) Precursors: Structure, Morphology and Optical Properties

Bekermann

Ludwig

Toader

et al. 2011

Chemical Vapor Deposition

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“…Impurity-doped ZnO thin films have been prepared by various techniques such as thermal evaporation [14], magnetron sputtering [15,16], spray pyrolysis [17,18], chemical vapor deposition (CVD) [19][20][21], pulsed laser deposition [22][23][24], molecular beam epitaxy [25] and sol-gel processing [26,[27][28][29]30]. Pulsed laser deposition has advantages in target fabrication and keeping the composition of films coinciding with the target.…”

Section: Introductionmentioning

confidence: 99%

Properties of Dy-doped ZnO nanocrystalline thin films prepared by pulsed laser deposition

Huang

et al. 2008

Applied Surface Science

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“…Typically, the gas-sensing properties of metal oxides depend on their catalytic or surface chemical properties as well as their physical or morphological properties such as grain size [9] and porosity. [10] Meanwhile, the CNTs have been considered as a building block of sensing materials with enhanced performance at low temperature due to their high surface area, excellent chemical stability and adjustable electrical properties. [11] It is believed that novel functionality combined with exceptional properties of ZnO and CNT, especially in the form of low-dimensional composite structures, is expected to emerge.…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted synthesis of ZnO/MWCNT hybrid nanocomposites and their alcohol-sensing properties

Potirak

Pecharapa

Techitdheera

2013

Journal of Experimental Nanoscience

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Zinc oxide and multi-walled carbon nanotube (ZnO/MWCNT) hybrid nanocomposites were synthesised by microwave-assisted method using the mixed solution of zinc acetate dehydrate (Zn(CH 3 COO) 2 Á2H 2 O) and treated MWCNTs. The syntheses were carried out at various microwave irradiation powers. The characterisation of the as-synthesised nanocomposites was conducted by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results revealed that the composites were composed of two phases of MWCNTs and hexagonal wurzite ZnO. The SEM results showed that the ZnO nanoparticles were well decorated on the surface of MWCNTs. The amount of ZnO nanoparticles and their size increased with increasing irradiation power. Thick-film sensors were fabricated onto interdigitated conducting electrodes using as-synthesised hybrid composites as sensing materials. The alcohol-sensing behaviour of the hybrid composite films was investigated. The results indicated that the irradiation power had significant influence on the sensing response of the sensors toward alcohol. The sensor fabricated from the composite synthesised at higher irradiation power exhibited an enhanced alcohol-sensing performance.

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Thickness influence on surface morphology and ozone sensing properties of nanostructured ZnO transparent thin films grown by PLD

Cited by 74 publications

References 19 publications

MOCVD of ZnO Films from Bis(Ketoiminato)Zn(II) Precursors: Structure, Morphology and Optical Properties

MOCVD of ZnO Films from Bis(Ketoiminato)Zn(II) Precursors: Structure, Morphology and Optical Properties

Properties of Dy-doped ZnO nanocrystalline thin films prepared by pulsed laser deposition

Microwave-assisted synthesis of ZnO/MWCNT hybrid nanocomposites and their alcohol-sensing properties

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