Growth Behaviour of ZnO on Si (100) and Platinum Coated Glass Substrate from Aqueous Solution

Bakar,; Hamid, Muhammad Azmi Abd; Jalar, Azman

doi:10.4028/www.scientific.net/amr.97-101.1550

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…To the best of our knowledge, we are reporting for the first time oval-like nanoparticles of ZnO with sizes less than 10 nm, other authors such as M.A. Bakar et al and M. Mamat have reported oval-like nanoparticles above 10 nm and they used hexamethylenetretamine as surfactant [33,34].…”

Section: Effect Of Tea On the Structure And Morphology Of Zno Quantummentioning

confidence: 74%

Effect of TEA on the blue emission of ZnO quantum dots with high quantum yield

Oliva¹,

Dı́az-Torres²,

Torres–Castro³

et al. 2015

Opt. Mater. Express

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This work reports the luminescence, morphology and synthesis of ZnO quantum dots using a simple wet chemical method and different concentrations of Triethanolamine (TEA) as surfactant. Those nanoparticles emitted a strong blue emission band centered at 429 nm when they are dispersed in hexane. Spherical quantum dots with sizes ranging from 3 to 7 nm were obtained for concentrations from 0 to 0.7 ml. of TEA, whereas a mixture with oval-like nanoparticles was observed from concentrations above of 1.1 ml of TEA. It was also possible to control the values of the band gap in ZnO quantum dots depending on the content of TEA. Based on the high quantum yield of 81% measured for those ZnO nanoparticles respect to quinine sulfate dye (QS), it is suggested that such nanoparticles could be used for biolabeling and ZnO based LEDs.

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Section: Effect Of Tea On the Structure And Morphology Of Zno Quantummentioning

confidence: 74%

Effect of TEA on the blue emission of ZnO quantum dots with high quantum yield

Oliva¹,

Dı́az-Torres²,

Torres–Castro³

et al. 2015

Opt. Mater. Express

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“…In addition, there is a tendency that ZnO-SiO 2 will strongly absorb on Pt surface because Pt is considered a good catalyst for growth. In addition, Pt displayed good stability under harsh conditions due to its resistance to oxidation [7] and Pt-coating on Si substrate showed enhancement of electrical contact during growth [8]. In this work, growth of ZnO-SiO 2 on Pt coated substrate is done.…”

Section: Introductionmentioning

confidence: 99%

Controlling the Growth of ZnO-SiO<sub>2</sub> Nanostructures Using Pt-Coated Si Substrate

Peguit

Candidato

Vequizo

et al. 2014

AMM

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ZnO-SiO2 nanostructures were grown on both bare Si and Pt-coated Si substrates via chemical bath deposition (CBD). The grown nanostructures were characterized using Scanning Electron Microscope with Energy Dispersive X-ray Spectroscopy (SEM-EDS), Fourier Transform Infrared (FTIR) measurement and Ultraviolet-Visible (UV-Vis) absorption spectroscopy. Surface morphology results revealed that Pt-coated Si substrate have promoted the growth of ZnO-SiO2 nanostructures by providing more active sites for nucleation thus formation ZnO-SiO2 nanostructures were observed. It is believed that SiO2 will adhere to the non-polar sides of the grown ZnO nanostructures. This result is manifested in the FTIR spectra which showed a pronounced peak corresponding to ZnO-SiO2 grown on bare Si suggesting that more Si-O bonds are present. However, Pt-coating did not significantly affect the band gap of the grown ZnO-SiO2 nanostructures.

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“…In this study, NiO were synthesized using aqueous chemical growth method which provide a simple and environmentally-friendly route, low cost, and lower crystallization temperature. This method had been reported to successfully grown films such as ZnO [11], iron (α-Fe) [12] and MgO [13].…”

Section: Introductionmentioning

confidence: 99%

Morphology and Optical Properties of Nickel Oxide Nanostructure from Aqueous Solution

Hamid

Bakar

Jalar

et al. 2011

AMR

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In this paper, porous flower-like nickel oxide (NiO) on glass substrates were prepared by an aqueous chemical growth based technique. The morphology and optical observed were found to be influence by the reaction time. Field Emission Scanning Electron Microscopy (FESEM) revealed a porous flower-like structure growth on the substrates investigated. The optical band gap for NiO thin film calculated from transmission spectra has increased from 3.72 eV to 3.91 eV with the increasing of reaction time. This result shows that the growth time have some influence on morphology and optical of NiO films.

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Growth Behaviour of ZnO on Si (100) and Platinum Coated Glass Substrate from Aqueous Solution

Cited by 3 publications

References 15 publications

Effect of TEA on the blue emission of ZnO quantum dots with high quantum yield

Effect of TEA on the blue emission of ZnO quantum dots with high quantum yield

Controlling the Growth of ZnO-SiO<sub>2</sub> Nanostructures Using Pt-Coated Si Substrate

Morphology and Optical Properties of Nickel Oxide Nanostructure from Aqueous Solution

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