Optical characterizations of PMMA/metal oxide nanoparticles thin films: bandgap engineering using a novel derived model

Al‐Bataineh, Qais M.; Ahmad, Ahmad A.; Alsaad, Ahmad; Telfah, Ahmad

doi:10.1016/j.heliyon.2021.e05952

Cited by 91 publications

(35 citation statements)

References 80 publications

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“…Our results indicate that

of undoped PMMA–PVA polymeric thin film lies in the range (1.5–1.85) as the wavelength is decreased. Introducing wt.% of 2%, 4%, 8%, and 16% of CuO NPs into PMMA–PVA polymeric thin films leads to an increase of

to 1.68 at

550 nm consistent with Q. Al Bataineh study [ 18 ]. This change is independent of the concentration level of CuO NPs incorporated in (PMMA–PVA) polymeric thin films.…”

Section: Resultssupporting

confidence: 81%

“…Using a simple approach to introduce CuO nanoparticles into PMMA–PVA polymer-matrix composites, distinguished mechanical, thermal, physical, electrical and optical properties are obtained. Integrating this work with previously published works on PMMA–PVA doped with other types of nanoparticles [ 16 , 17 , 18 , 19 ] is expected to provide the industrial market with a wide spectrum of novel materials having a wide range of distinguished optical, mechanical, and physical properties. Numerous efforts could then be performed to expand this approach for the fabrication of highly efficient devices.…”

Section: Introductionmentioning

confidence: 85%

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Synthesis of Optically Tunable and Thermally Stable PMMA–PVA/CuO NPs Hybrid Nanocomposite Thin Films

et al. 2021

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We report the synthesis and comprehensive characterization of polymethylmethacrylate (PMMA)/polyvinylalcohol (PVA) polymeric blend doped with different concentrations of Copper oxide (CuO) nanoparticles (NPs). The PMMA–PVA/CuO nanocomposite hybrid thin films containing wt.% = 0%, 2%, 4%, 8%, and 16% of CuO NPs are deposited on glass substrates via dip-coating technique. Key optical parameters are measured, analyzed, and interpreted. Tauc, Urbach, Spitzer–Fan, and Drude models are employed to calculate the optical bandgap energy (Eg) and the optoelectronic parameters of PMMA–PVA/CuO nanocomposites. The refractive index and Eg of undoped PMMA–PVA are found to be (1.5–1.85) and 4.101 eV, respectively. Incorporation of specific concentrations of CuO NPs into PMMA–PVA blend leads to a considerable decrease in Eg and to an increase of the refractive index. Moreover, Fourier Transform Infrared Spectroscopy (FTIR) transmittance spectra are measured and analyzed for undoped and doped polymeric thin films to pinpoint the major vibrational modes in the spectral range (500 and 4000 cm−1) as well as to elucidate the nature of chemical network bonding. Thermogravimetric analysis (TGA) is conducted under appropriate conditions to ensure the thermal stability of thin films. Doped polymeric thin films are found to be thermally stable below 105 °C. Therefore, controlled tuning of optoelectronic and thermal properties of doped polymeric thin films by introducing an appropriate concentration of inorganic fillers leads to a smart design of scaled multifunctional devices.

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“…Our results indicate that

to 1.68 at

550 nm consistent with Q. Al Bataineh study [ 18 ]. This change is independent of the concentration level of CuO NPs incorporated in (PMMA–PVA) polymeric thin films.…”

Section: Resultssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 85%

Synthesis of Optically Tunable and Thermally Stable PMMA–PVA/CuO NPs Hybrid Nanocomposite Thin Films

et al. 2021

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“…Materials with a low value of η are very suitable for SC absorber material and an antireflection layer. e refractive index of the thin films was calculated from the following equation [48],…”

Section: Optical Characteristicsmentioning

confidence: 99%

Synthesis and Characterizations of CH3NH3PbI3 : ZnS Microrods for Optoelectronic Applications

Ahmed

Islam

Bashar

et al. 2022

Advances in Materials Science and Engineering

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Organometallic perovskite is one of the potential materials in the various optoelectronic research fields. This study demonstrates the synthesis of CH3NH3PbI3 : ZnS microrods via one-step spin coating for optoelectronic applications. Incorporation of ZnS in the perovskite material caused bandgap variation in the visible wavelength range. Structural and chemical properties have been observed using X-ray diffraction, scanning electron microscope, and Fourier transform infrared spectroscopy. The optical and electrical properties were studied via UV-Vis spectroscopy and impedance analyzer. The addition of ZnS caused to increase the optical absorption coefficient from ∼104 cm−1 to ∼105 cm−1. The bandgaps of the thin films were calculated using the Tauc relation and electrical method, obtained in the range 1.51 eV–1.64 eV, suitable for various optoelectronic applications.

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“…The H shallow donor and N shallow acceptor defects influencing the valance (VB) and conduction (CB) bands occurred due the disorders were investigated by Urbach energy ( E U ) via the equation = α 0 exp(hv∕E u ) [45]. Based on the findings in the literature, the obtained band structure was investigated using ionization and electron affinity energies [46,47]. The band structure schematic diagram illustrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

Hidden impurities in transparent conducting oxides: study of vacancies-related defects and impurities in (Cu–Ni) co-doped ZnO films

et al. 2022

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The effect of hydrogen and nitrogen impurities on the physical properties of transparent conductive oxides is investigated in this study. Therefore, 5 wt.% of copper and 5 wt.% of nickel co-doped zinc oxide ((Cu–Ni)/ZnO) films were prepared using the sol–gel method. The (Cu–Ni)/ZnO films were annealed in an oven at 500 °C for 2 h under air, vacuum, nitrogen, and argon atmospheres. The synthesized zinc hydroxide film was transformed to zinc oxide film during the annealing by evaporating $${\mathrm{H}}_{2}\mathrm{O}$$ H 2 O . Films annealed under the mentioned atmosphere including as-prepared one were characterized by analyzing with UV–Vis and FTIR spectra in addition to the 2D mapping electrical conductivity of the surface measured by the 4-point probe. The annealed films under air, vacuum, and argon atmospheres led to generate H-related impurities bounded to the oxygen vacancy ($${\mathrm{H}}_{\mathrm{O}}$$ H O ) which they act as shallow donor defects resulting in forming (Cu–Ni)/ZnO films into n-type materials. Whereas, the film annealed under a nitrogen atmosphere has N-related defects bounding to the zinc vacancy ($${\mathrm{N}}_{\mathrm{Zn}}$$ N Zn ) which they act as shallow acceptor defects resulting in transforming the film from n-type to p-type. These defects affect the optical, electrical, and optoelectronic properties of the (Cu–Ni)/ZnO films.

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Optical characterizations of PMMA/metal oxide nanoparticles thin films: bandgap engineering using a novel derived model

Cited by 91 publications

References 80 publications

Synthesis of Optically Tunable and Thermally Stable PMMA–PVA/CuO NPs Hybrid Nanocomposite Thin Films

Synthesis of Optically Tunable and Thermally Stable PMMA–PVA/CuO NPs Hybrid Nanocomposite Thin Films

Synthesis and Characterizations of CH3NH3PbI3 : ZnS Microrods for Optoelectronic Applications

Hidden impurities in transparent conducting oxides: study of vacancies-related defects and impurities in (Cu–Ni) co-doped ZnO films

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