Synthesis and study of TiO2/CuO core shell nanoparticles for photovoltaic applications

Mukul, Monika; Devi, Nisha; Sharma, Sameeksha; Tripathi, S. K.; Rani, Mamta

doi:10.1016/j.matpr.2020.04.805

Cited by 10 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, no additional peaks associated with Cu and/or copper oxide were noticed in the obtained XRD pattern. This finding indicates the effective incorporation of the Cu ions into Zn sites since the ionic radii of Cu 2+ (0.73 Å [51]) are very close to those of Zn 2+ (0.74 Å [52]). Moreover, based on the (101) plane and using the Debye-Scherrer relation (Eq.…”

Section: Structural and Morphological Analysesmentioning

confidence: 65%

Role of Cu/ZnO Nanostructures Doping on the Optical Behavior of Polyvinyl Alcohol/Polyvinyl Pyrrolidone/Graphene Composites for Optoelectronic Applications

Althobaiti,

Badawi

2023

Journal of Macromolecular Science, Part B

View full text Add to dashboard Cite

The linear/nonlinear optical and dielectric performance of PVA/PVP/graphene composites were enhanced by doping with Cu/ZnO (ZCO) nanoparticles (NPs) for optoelectronic applications. Bare and ZCO polymeric nanocomposites (PNCs) blends were fabricated by the casting method. The structure of the synthesized ZCO NPs and ZCO PNCs were studied by X-ray diffraction (XRD) and Fourier transform infra-red (FT-IR) spectroscopy techniques. The optical performance was characterized on the basis of UV-visible-NIR data. The XRD investigations revealed the wurtzite structure of the ZCO NPs with a crystallite size of 17.8 nm. The FT-IR investigations confirmed the integration of ZCO NPs with the host blend's structure. The optical analysis exposed that the direct and indirect band gap of the host blend decreased from 5.20 eV and 4.94 eV to 4.36 eV and 4.29 eV for 10 wt% of ZCO PNCs. The Urbach energy rose from 0.62 eV to 1.28 eV for 10 wt% of ZCO PNCs. The refractive index grew from 1.29 (bare blend) to 1.82 for 10 wt% of ZCO PNC at hν= 2.0 eV. In addition, a great enhancement in the nonlinear optical constants was achieved via ZCO doping. The third-order nonlinear susceptibility, χ (3) , increased from 1.30 x 10 -13 esu (bare) to 9.23 x 10 -11 esu for 10 wt% of ZCO PNC at hν = 5.0 eV. We suggest these valuable achievements in the optical behavior of PVA/PVP/graphene blend by ZCO doping nominate it for applications in optical devices improvement.

show abstract

Section: Structural and Morphological Analysesmentioning

confidence: 65%

Role of Cu/ZnO Nanostructures Doping on the Optical Behavior of Polyvinyl Alcohol/Polyvinyl Pyrrolidone/Graphene Composites for Optoelectronic Applications

Althobaiti,

Badawi

2023

Journal of Macromolecular Science, Part B

View full text Add to dashboard Cite

show abstract

“…In 2020, Monika et al reported the synthesis of TiO2-CuO core-shell nanoparticles for photovoltaic applications. They found good absorption efficiency and electrical properties of TiO2-CuO [20]. In 2020, Nuha et al prepared and studied TiO2-CuO nanoparticles, They concluded that the degradation rate constants values were calculated and were 0.01391 and 0.01816 min −1 for CuO and TiO2-CuO respectively [21].…”

Section: Introductionmentioning

confidence: 99%

Study and Characterization of Copper and Titanium Oxides Nanostructures for Some Molecular and Biological Applications

Abdulazeez Alhamd,

Ghazi Ali,

Salih Hasan Aljuboori

2024

Trends Sci

View full text Add to dashboard Cite

In this work, Copper and Titanium nanocomposites (NPs) were prepared by mixture exchange process with ratios (25, 50 and 75 % CuO-TiO2). The biological activity was studied, and it was found that the concentrations of 50 and 100 µg/mL of 50 and 75 % CuO-TiO2 were the best concentrations, Low concentrations of the nanoparticle mixture at 25 µg/mL also stimulated the growth of symbiotic bacteria. The mixture of nanoparticles was easier to prepare and more effective in inhibiting bacterial growth. biochemical test and PCR were performed to confirm the identity of the studied bacteria. While isolating the bacteria, a new type of bacteria was detected and registered in the Global Gen Bank under accession No. OP942239. Surface and structure properties have been studied using FESEM, EDS analysis, XRD and FTIR respectively. It can be seen that the size and diameter of the nanocomposite increase with the weight ratio of CuO-TiO2. The aggregated CuO-TiO2 nanostructures with different ratios were transformed gradually into a uniform spherical shape. The average size of the CuO/TiO2 composite was found to be about 32.122, 29.865 and 27.607 nm at 25, 50 and 75 % CuO-TiO2 respectively. While the mean sizes of CuO and TiO2 were 25.35 and 34.38 nm respectively. The crystalline size decreases after the ion exchange process, which could be due to the diffraction peaks being broad in all the samples of Copper Titanate at the surface. Subsequently, adding Copper particles to the TiO2 film can improve the performance of the material. HIGHLIGHTSThe nanostructure CuO-TiO2 was created through various loading ratios. These NPs’ efficiency was calculated using a number of techniques, including FTIR, X-ray diffraction, EDS spectra, and FESEM. The observations indicate that molecular transition parameters play an essential role in determining the size, shape, and functionality of CuO- TiO2 NPs. The sharp peaks observed in the composites indicated higher crystallinity in CuO. In addition, two types of NPs have shown promising effects in inhibiting NPs aggregation and enhancing biological effects but the potential of these NPs against different bacteria may differ. Thus, further research and testing is needed to assess its efficacy and human health and environmental impact before considering its use. In conclusion, copper and titanium NPs have their distinct advantages in bacterial inhibition, and the choice between them should be based on specific conditions and environmentally friendly factors. GRAPHICAL ABSTRACT

show abstract

Structure investigation and optical bandgap tuning of La-doped CuO nanostructured films prepared by spray pyrolysis technique

et al. 2021

View full text Add to dashboard Cite

Synthesis and study of TiO2/CuO core shell nanoparticles for photovoltaic applications

Cited by 10 publications

References 25 publications

Role of Cu/ZnO Nanostructures Doping on the Optical Behavior of Polyvinyl Alcohol/Polyvinyl Pyrrolidone/Graphene Composites for Optoelectronic Applications

Role of Cu/ZnO Nanostructures Doping on the Optical Behavior of Polyvinyl Alcohol/Polyvinyl Pyrrolidone/Graphene Composites for Optoelectronic Applications

Study and Characterization of Copper and Titanium Oxides Nanostructures for Some Molecular and Biological Applications

Structure investigation and optical bandgap tuning of La-doped CuO nanostructured films prepared by spray pyrolysis technique

Contact Info

Product

Resources

About