Influence of ultraviolet irradiation on physical properties of nano-NiO films for optical applications

Rashad, M.; Darwish, A.A.A.; Qashou, Saleem I.; El-Rahman, K.F. Abd

doi:10.1007/s00339-020-04012-4

Cited by 18 publications

(7 citation statements)

References 35 publications

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“…The XRD data of the RGO-NiO nanocomposite confirmed that the composition of the 2 θ diffraction characteristics dominates NiO NPs, with the corresponding Bragg's reflections at 37.21° (111) 41.50° (200), 62.61° (311), 75.31° (311), and 78.92° (222). 63 On the other hand, the XRD data of the RGO-AgO nanocomposites confirmed that the composition of the 2 θ diffraction characteristics dominates AgO NPs with the corresponding Bragg's reflections at 32.61° (111), 38.72° (200), 52.81° (220), and 68.71° (311). 64 Finally, the XRD data of the RGO-ZnO nanocomposites confirmed that the composition of the 2 θ diffraction characteristics dominates ZnO NPs, with the corresponding Bragg's reflections at 32.60° (100), 36.81° (002), 39.25° (101), 46.37° (102), 58.91° (110), 61.8° (103), and 71.3° (200).…”

Section: Resultsmentioning

confidence: 83%

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

et al. 2021

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Section: Resultsmentioning

confidence: 83%

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

et al. 2021

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“…The values of n in the range of 1.45–2.16 for NiO x films treated at 300, 400, and 500 °C and the optical band gap change (from 3.92 to 3.68 eV) coincide to the reported values as can be seen in Table 3 [ 54 , 59 , 60 , 61 ].…”

Section: Resultssupporting

confidence: 81%

Nickel Oxide Films Deposited by Sol-Gel Method: Effect of Annealing Temperature on Structural, Optical, and Electrical Properties

et al. 2022

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In our study, transparent and conductive films of NiOx were successfully deposited by sol-gel technology. NiOx films were obtained by spin coating on glass and Si substrates. The vibrational, optical, and electrical properties were studied as a function of the annealing temperatures from 200 to 500 °C. X-ray Photoelectron (XPS) spectroscopy revealed that NiO was formed at the annealing temperature of 400 °C and showed the presence of Ni+ states. The optical transparency of the films reached 90% in the visible range for 200 °C treated samples, and it was reduced to 76–78% after high-temperature annealing at 500 °C. The optical band gap of NiOx films was decreased with thermal treatments and the values were in the range of 3.92–3.68 eV. NiOx thin films have good p-type electrical conductivity with a specific resistivity of about 4.8 × 10−3 Ω·cm. This makes these layers suitable for use as wideband semiconductors and as a hole transport layer (HTL) in transparent solar cells.

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“…UV irradiation has a very important effect on the properties of materials [ 3 , 4 , 5 ]. In the space environment, solar ultraviolet irradiation will have a serious impact on the tribological properties of solid lubricants such as polymer self-lubricating coating, MoS 2 coating and diamond-like film [ 6 , 7 , 8 ], especially some polymer materials, but these polymer materials have good mechanical properties, high wear resistance, excellent self-lubricating properties and chemical stability, and many other advantages, and are widely used in the aerospace field, so researchers are required to improve these materials, the current research on the impact of space UV irradiation on material properties.…”

Section: Introductionmentioning

confidence: 99%

Development and Verification Experiment of In-Situ Friction Experiment Device for Simulating UV Irradiation in Space

Wei

Liu

Guo³

et al. 2022

Materials

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In order to explore the influence of space ultraviolet radiation on spacecraft lubricating materials, an in-situ friction experimental device simulating space ultraviolet radiation was developed in the laboratory, and the experimental verification was carried out. This paper firstly introduced the design index, structure and working principle of the space ultraviolet irradiation simulation device, and then calibrated and tested the parameters of the whole device, and also conducted a virtual operation of the device’s operation effect by simulation software, and the results showed that it met the design index. Finally, the validation tested of the ultraviolet irradiated in-situ friction experimental device were described in detail. By using the device to irradiate the samples, it was found that the in-situ ultraviolet irradiation device could achieve the expected irradiation effect, and the irradiation would lead to changes in the surface structure and properties of the PTFE material, while also achieving the need for in-situ spatial friction property testing of the material, providing favorable conditions for future testing.

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Influence of ultraviolet irradiation on physical properties of nano-NiO films for optical applications

Cited by 18 publications

References 35 publications

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

Promising antimicrobial and antibiofilm activities of reduced graphene oxide-metal oxide (RGO-NiO, RGO-AgO, and RGO-ZnO) nanocomposites

Nickel Oxide Films Deposited by Sol-Gel Method: Effect of Annealing Temperature on Structural, Optical, and Electrical Properties

Development and Verification Experiment of In-Situ Friction Experiment Device for Simulating UV Irradiation in Space

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