The effect of electronegativity on optical properties of Mg doped ZnO

Hamidi, A. El; Mahboub, E. El; Meziane, K.; Hichou, A. El; Almaggoussi, A.

doi:10.1016/j.ijleo.2021.167070

Cited by 16 publications

(4 citation statements)

References 41 publications

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“…Pada pertengahan abad ke-20, lapisan tipis sebagai salah satu teknologi nanomaterial mengalami perkembangan yang signifikan [1]. Hal tersebut didasari oleh eksistensi lapisan tipis yang berpotensi diaplikasikan di berbagai bidang, seperti perangkat elektronik, optoelektronik, photodetector, dan lainnya [2].…”

Section: Pendahuluanunclassified

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Studi Struktur Kristal Lapisan Tipis Seng Oksida Dengan Doping Magnesium (Zno:mg) 0.08 Mol Menggunakan Teknik Penghalusan Rietveld

Sari¹,

Sugihartono²,

Budi³

et al. 2023

Prosiding Seminar Nasional Fisika (E-Journal) snf2016 Unj

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Pada penelitian ini telah dilakukan pendeposisian lapisan tipis ZnO tanpa doping dan dengan doping Mg menggunakan teknik teknik Ultrasonic Spray Pyrolysis (USP) di atas substrat silicon (Si) pada suhu 450 o C dengan frekuensi 1.7 MHz selama 15 menit. Zinc Acetate Dyhydrate [Zn(CH3COO)2] digunakan sebagai prekusor Zn dan Mg(CH3COO)24H2O sebagai prekusor Mg dengan konsentrasi 0.08 mol. Struktur kristal lapisan tipis ZnO tanpa doping dan dengan doping Mg (0.08 mol) dianalisis menggunakan teknik difraksi sinar-x (XRD). Berdasarkan pola XRD terkonfirmasi bahwa struktur kristal dari lapisan tipis ZnO dan ZnO:Mg adalah polikristalin dengan bentuk hexagonal wurtzite. Analisis struktur kristal lebih lajut pada lapisan tipis ZnO tanpa doping dan dengan doping Mg akan dilakukan menggunakan teknik penghalusan Rietveld agar diperoleh data yang lebih baik.

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Section: Pendahuluanunclassified

“…Hasil tersebut mengindikasikan bahwa refinement yang dilakukan sangat baik, dikarenakan nilai Rwp yang dihasilkan dibawah 20% (atau dibawah 0.2) [15]. Sementara itu parameter lainnya seperti ukuran kristal dihitung menggunakan persamaan Debye Scherrer yang dinyatakan pada persamaan (1).…”

Section: Hasil Dan Pembahasanunclassified

Studi Struktur Kristal Lapisan Tipis Seng Oksida Dengan Doping Magnesium (Zno:mg) 0.08 Mol Menggunakan Teknik Penghalusan Rietveld

Sari¹,

Sugihartono²,

Budi³

et al. 2023

Prosiding Seminar Nasional Fisika (E-Journal) snf2016 Unj

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“…Electronegativities have also been calculated for various species using the operational definition involving ionization energy and electron affinity [17] . The effect of varying electronegativity on the optical properties of doping has also been studied [18] …”

Section: Introductionmentioning

confidence: 99%

“…[17] The effect of varying electronegativity on the optical properties of doping has also been studied. [18]…”

Section: Introductionmentioning

confidence: 99%

An FSGO based Electronegativity Scale invoking the Electrophilicity Index

et al. 2022

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Electronegativity is an important chemical construct that plays a pivotal role to explain several chemical, biochemical and physicochemical phenomena. The study of this periodic descriptor is still considered an active domain of research, and a number of scientists are involved to propose different scales of electronegativity based on experimental findings and theoretical concepts. In this study, we have proposed a model to compute atomic electronegativity values of 103 elements based on the Floating Spherical Gaussian Orbital approach invoking the atomic electrophilicity index as a descriptor. The computed electronegativity scale observes the periodic trend and justifies many chemical phenomena. Molecular electronegativity values have also been computed using the computed atomic electronegativity data and utilized to justify the Electronegativity Equalization Principle. In order to validate our proposed model, internuclear bond distances for some molecules have been deduced in terms of our computed atomic electronegativity data. A strong correlation with experimental counterparts proves the efficacy of our proposed model.

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Impact of Mg‐doping on morphology, structure, optical properties, and enhancing photocatalytic performance of ZnO thin films, prepared by sol–gel spin‐coated method

Tusher,

Mirza,

Jabed

et al. 2024

Vietnam Journal of Chemistry

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Thin films of pure and Mg‐doped ZnO (MZO) were successfully fabricated on glass substrates by sol–gel spin coating method. Microstructure, surface morphology, elemental composition, optical analysis, and Mg doping effect on the photocatalytic performance of the thin films have been measured by XRD, SEM, EDS, and UV–Vis, respectively. XRD analysis showed that ZnO and MZO thin films have a hexagonal wurtzite structure, and the intensity of the (0 0 2) peak moved from higher to lower angle and right to left with rising Mg‐dopant concentration, and crystallinity was enhanced with doping, whereas micro‐strain and dislocation density dropped. SEM analysis found that ZnO had spherical and agglomerated structures, and the increased size of the grains was observed with increasing doping. The optical analysis demonstrated that the band gaps increased as the dopant percentage increased. Methylene blue, a dye pollutant, examined the thin films’ photocatalytic performance. It was demonstrated that the addition of the Mg to the ZnO lattices increased the absorption of the hydroxyl ions at the surface of the thin film and hence acted as a trap site, leading to a decrease in the electron–hole pair and consequently enhancing the photodegradation.

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The effect of electronegativity on optical properties of Mg doped ZnO

Cited by 16 publications

References 41 publications

Studi Struktur Kristal Lapisan Tipis Seng Oksida Dengan Doping Magnesium (Zno:mg) 0.08 Mol Menggunakan Teknik Penghalusan Rietveld

Studi Struktur Kristal Lapisan Tipis Seng Oksida Dengan Doping Magnesium (Zno:mg) 0.08 Mol Menggunakan Teknik Penghalusan Rietveld

An FSGO based Electronegativity Scale invoking the Electrophilicity Index

Impact of Mg‐doping on morphology, structure, optical properties, and enhancing photocatalytic performance of ZnO thin films, prepared by sol–gel spin‐coated method

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