Photoluminescence properties of Zinc Oxide nanostructures on different substrates obtained by an immersion method

Husairi, F.S.; Azlinda, A.; Rusop, M.; Abdullah, Saifollah

doi:10.1016/j.mee.2013.01.064

Cited by 13 publications

(8 citation statements)

References 28 publications

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“…The first appeared peak in the UV region around 387 nm has been seen for both structures due to the near broad band-gap edge of ZnO. It originates from the recombination of degenerated carriers and excitons [48]. Also, there is a peak in the visible region by the centrality of 642 nm (1.9 eV ) (red wavelength) related to the transition from V o to up the valence band (V.B) [49].…”

Section: Resultsmentioning

confidence: 87%

Fast and one-step synthesis of small ZnO nano-tetrapods Using CO₂ laser in ambient air: physical properties

Riahi¹,

Tajaldini²

2022

Phys. Scr.

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A simple method of laser ablation was developed to synthesis small nano-tetrapods as a fast and one-step process. The used laser was CO2 laser with 10.6µm of wavelength. The produced samples in two states showed two different morphologies: nano-rods and nano-tetrapods. Optical, structural, and morphological properties were studied by performing room-temperature scanning electron microscopy (FESEM), Dynamics Light Scattering (DLS), X-ray diffraction (XRD), photoluminescence (PL), and UV-visible analysis. FESEM analysis shows that the produced ZnO nano-tetrapods diameters are approximately 10-13 nm by arm length about 250 nm with excellent morphologies. XRD determines that the nano-particles are in phase with pure ZnO and both morphologies have the Hexagonal wurtzite. Two high peak in photoluminescence spectrum were observed on UV and visible spectrums. UV-Vis spectral of dispersed samples on deionized water determined that nano-rods and nano-terapods have peaks on 374nm and 370 nm, respectively. Therefore, results shows the capability of introduced method to access two different morphologies of ZnO in two states and significantly achieving the nano-tetrapods structure by laser ablation.

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Section: Resultsmentioning

confidence: 87%

Fast and one-step synthesis of small ZnO nano-tetrapods Using CO₂ laser in ambient air: physical properties

Riahi¹,

Tajaldini²

2022

Phys. Scr.

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“…The formation and effect of the oxide layer was discussed in detail in our previous paper. 21 The charge transfer process can be described by an equivalent circuit model; an R ct parallel with a C dl .…”

Section: −mentioning

confidence: 99%

Performance Evaluation of Crack-Like ZnO/PSi Nanostructure Chemical Solution Sensor via Electrochemical Impedance Technique

Husairi

Eswar

Asib

et al. 2020

J. Electrochem. Soc.

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Electrochemical impedance spectroscopy (EIS) has been broadly used to investigate a variety of other electrochemical systems, including electrodeposition, corrosion, fuel cells and batteries. Here, a new approach to characterize chemical sensors based on the ZnO/porous Si (PSi) nanostructure arrays via an EIS technique is reported. ZnO nanostructures were successfully synthesized on the PSi structures using the free-catalytic thermal immersion method. Detailed characterization of this nanostructure was carried out by atomic force microscopy, field emission scanning electron microscopy and EIS. EIS analysis was used for two classified groups; polar and non-polar solvents. The performance evaluation of ZnO/PSi nanostructure sensors showed rapid and high response compared to a PSi nanostructure that may attribute to the regular morphology and suitable thickness for sensing.

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“…The intensity of UV emission peak for 0.10 M and 0.25 M are clearly seen and higher compared to 0.50 M and 1.00 M, which are too low. Thus, 0.10 M and 0.25 M has higher crystallinity of ZnO nanostructures due to free exciton emission [19]. The crystal quality and optical properties are known to be enhanced when the ratio of UV emission peak intensity and the visible emission peak intensity, I UV /I VIS is increased [17,20,21].…”

Section: Characterization Of Tio 2 : Zno Nanostructures Thin Filmsmentioning

confidence: 99%

Effect of molarity of TiO₂ seeded-template to the growth of ZnO nanostructures

Asib

Afaah

Aadila

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Photoluminescence properties of Zinc Oxide nanostructures on different substrates obtained by an immersion method

Cited by 13 publications

References 28 publications

Fast and one-step synthesis of small ZnO nano-tetrapods Using CO₂ laser in ambient air: physical properties

Fast and one-step synthesis of small ZnO nano-tetrapods Using CO₂ laser in ambient air: physical properties

Performance Evaluation of Crack-Like ZnO/PSi Nanostructure Chemical Solution Sensor via Electrochemical Impedance Technique

Effect of molarity of TiO₂ seeded-template to the growth of ZnO nanostructures

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Photoluminescence properties of Zinc Oxide nanostructures on different substrates obtained by an immersion method

Cited by 13 publications

References 28 publications

Fast and one-step synthesis of small ZnO nano-tetrapods Using CO2 laser in ambient air: physical properties

Fast and one-step synthesis of small ZnO nano-tetrapods Using CO2 laser in ambient air: physical properties

Performance Evaluation of Crack-Like ZnO/PSi Nanostructure Chemical Solution Sensor via Electrochemical Impedance Technique

Effect of molarity of TiO2 seeded-template to the growth of ZnO nanostructures

Contact Info

Product

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Fast and one-step synthesis of small ZnO nano-tetrapods Using CO₂ laser in ambient air: physical properties

Fast and one-step synthesis of small ZnO nano-tetrapods Using CO₂ laser in ambient air: physical properties

Effect of molarity of TiO₂ seeded-template to the growth of ZnO nanostructures