Optical investigations of gold nano rods and gold nano rods doped with ZnO nanoparticles for optoelectronic applications

Hassan, Nabaa K.; Khalid, Farah G.; Ekshayesh, Ahmed Ali; Ibrahim, Raed Khalid; Salim, Evan T.; Fakhri, Makram A.; Abdulwahhab, Ahmed W.; Alsultany, Forat H.; Gopinath, Subash C.B.; Dahham, Omar S.; Hussein, Maryam Mousa

doi:10.1007/s12596-023-01120-1

Cited by 16 publications

(5 citation statements)

References 48 publications

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“…Thus, the hydroxyapatite (HAP) won't possess any bad influences upon the human health if employed for packaging the material because it's a natural bio-material [19,20]. The investigators have concentrated upon the production of the bio-degradable packaging materials containing hydroxyapatite (HAP) and on the study of their mechanical, and rheological, and thermal characteristics [21][22][23]. No investigation was found on employing the nHAP in the PS/PC film and its influences upon the performance of food packaging, particularly the UV-weathering.…”

Section: Introductionmentioning

confidence: 99%

Influence of nano-hydroxyapatite particles on the mechanical and antibacterial properties of polycarbonate films

Abed,

Hameed,

Salim

2023

Mater. Res. Express

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Eco-friendly composite films of polycarbonate/nano-hydroxyapatite have been successfully prepared using the solution casting method with a concentration of (3, 5, 10 and 15% PS/PC with 1.6 n HAP). These films were characterized to study the influence of nano material on the Ultraviolet (UV)-wethering of the mechanical properties utilizing tensile test, thermal properties using lee disc, and antibacterial properties employing culture method. From the tests, it was seen that the nano hydroxyapatite has led to a decrease in the degradation and to an increase of thermal conductivity. The antibacterial studies manifested that the toxicity was severely decreased by the incorporation of nano hydroxyapatite and became highly antibacterial. The contact angle tests elucidated that the prepared films were highly hydrophobic with a hydrophobocity of 99%, which aids in the antibacterial capabilities and hence they can be used as packaging materials.

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Section: Introductionmentioning

confidence: 99%

Influence of nano-hydroxyapatite particles on the mechanical and antibacterial properties of polycarbonate films

Abed,

Hameed,

Salim

2023

Mater. Res. Express

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“…Compared to other materials used in biosensors, In2O3 offers a number of benefits, including great biocompatibility, strong conductivity, and a high surface area-to-volume ratio [11,12]. Many techniques, including as co-precipitation, hydrothermal, and sol-gel, may be used to readily manufacture in2o3 [13,14]. Additionally, In2O3 is extremely stable, making it a perfect substance for biosensors that need long-term stability [15,16].…”

Section: Advantages Of In2o3mentioning

confidence: 99%

Physical Investigations of In2O3/Porous Silicon at Different Laser Wavelengths

Dua’a R. T. Alrayyes,

Makram A. Fakhri,

Ali A. Alwahib

et al. 2024

IJNeaM

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In this study, In2O3 thin films deposited on porous silicon using the pulsed laser deposition (PLD) method. The PSi substrate was prepared by photo electrochemical etching with the diode laser assistant. The impacts of various laser wavelengths on structural, spectroscopic, and performance characterizations were investigated. XRD revealed that the In2O3/PSi films have a polycrystalline cubic structure. The PL test showed measurements of two emission peaks related to In2O3 films (500, 463, 460 nm) and the PSi membrane (857, 852, 829 nm). The peaks at shorter wavelengths increased the energy gap from 2.4 eV to 2.69 eV. AFM results showed the surface roughness of the prepared samples were (3.78, 2.74, 2.3 nm), respectively and the root mean square (4.47, 3.26, 3.12 nm), respectively. FESEM images illustrated that the prepared samples had an average diameter size of (34.51, 25.55, 29.44 nm) with a cauliflower-like shape at 355 nm and rod-shaped particles for both 532 and 1064 nm. EDX tests were performed to figure out the elemental composition of In2O3/PSi the concentrations. The longer the laser wavelength, the higher the concentration of indium. The highest laser wavelength increased the transmission while decreasing the absorption.

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“…In addition to their interesting fundamental properties, these NPs have can have different technological applications (Kishore et al 2023). They are likely to give rise to a new generation of electronic (Samadi et al 2022), optoelectronic (Hassan et al 2023) and biological devices (Baretta et al 2023), with a major impact on diverse sectors including lighting (Sarker and Ahn 2023), sensors (Ouni et al 2023a), lasers (Jiang et al 2022), photovoltaics (Wang et al 2023), biomarkers (Jang et al 2023) and medical imaging (Chen et al 2023). An intensive research has performed on the study and development of group II-VI binary NPs, in particular, those containing cadmium (e.g., CdSe, CdS, CdTe) (Kandasamy et al 2023; Gan et al 2023;Liu et al 2023).…”

Section: Introductionmentioning

confidence: 99%

An effective and sustainable dye removal via sunlight-based photocatalysis and adsorption using eco-friendly and low-cost ZnS nanoparticles: Experiments, modelling, and mechanism

Ouni,

Yahia,

Mohamed

et al. 2024

Preprint

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Novel sulfur zinc nanoparticles functionalized with thioglycolic acid were synthetized via hydrothermal route and tested in a solar radiation-based dye photodegradation process. These nanoparticles were characterized, and the findings revealed that thioglycolic acid was a strong capping ligand for the generation of sulfur zinc nanoparticles with a specific surface area of 36.82 m2/g and 7.15 nm average nanocrystal size. The cubic and wurtzite phases of these nanoparticles were confirmed via X-ray diffraction. The quantum confinement effect caused a larger energy band gap and a blue shift in the absorbance band of these nanoparticles in contrast to the bulk sulfur zinc. The improved adsorption effectiveness of these nanoparticles was proved to remove methylene blue from aqueous solutions. They can remove 30.92 mg/g of tested dye molecule. To understand the synergy between adsorption and photocatalysis, these nanoparticles were used to analyze the dye adsorption prior to the photodegradation via the experimental measurement of isotherms and kinetics. The rationalization of the dye adsorption on these nanoparticles was performed with calculated statistical physics parameters including the estimation of dye – nanoparticles adsorption energy. Dye molecules and nanoparticles surface exhibited physical interactions with adsorption energies of 25.92–23.31 kJ/mol. The sunlight-based photocatalytic activity of these nanoparticles demonstrated 91.1% dye degradation efficiency in 180 min. Overall, the photocatalytic efficiency remained almost unchanged after five consecutive degradation cycles with a methylene blue degradation of 88 ± 3%. These results indicate that these sustainable nanoparticles can be applied in the cleaning of industrial and urban fluids polluted by hazardous organic compounds like dye molecules.

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Optical investigations of gold nano rods and gold nano rods doped with ZnO nanoparticles for optoelectronic applications

Cited by 16 publications

References 48 publications

Influence of nano-hydroxyapatite particles on the mechanical and antibacterial properties of polycarbonate films

Influence of nano-hydroxyapatite particles on the mechanical and antibacterial properties of polycarbonate films

Physical Investigations of In2O3/Porous Silicon at Different Laser Wavelengths

An effective and sustainable dye removal via sunlight-based photocatalysis and adsorption using eco-friendly and low-cost ZnS nanoparticles: Experiments, modelling, and mechanism

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