Simplistic Theoretical Model for Optoelectronic Properties of Compound Semiconductors

Pal, Suresh; Tiwari, R.K.; Gupta, Dinesh C.; Verma, Aditya

doi:10.12691/jmpc-2-2-2

Cited by 16 publications

(12 citation statements)

References 34 publications

(49 reference statements)

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“…The band gap is connected to the refractive index by many relations based on the photo effect studies derived by Mott and Gurney. Among these models, Moss, 93 Kumar and Sight, 94 Herve‐Vandamme, 95 and Duffy, 96 which can be mathematically described below:

\mathrm{Moss}\kern2em n=\sqrt[4]{95/{E}_g}=3.12\sqrt[4]{E_g.}

$$ \mathrm{Herve}-\mathrm{Vandamme}\kern2em n=\sqrt{1+{\left(A/\left({E}_g+B\right)\right)}^2},\mathrm{A}=13.6\ \mathrm{eV},\mathrm{B}=3.47.

…”

Section: Resultsmentioning

confidence: 99%

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Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO₃ polymer nanocomposites as promising films for optoelectronics and energy storage applications

Al‐Sulami,

Al‐Nashri,

Al‐Mhyawi

et al. 2024

Polymers for Advanced Techs

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This work is devoted to optimizing the optical and dielectric parameters of polyvinyl alcohol (PVA): polyvinyl pyrrolidone (PVP) (1:1) polymer nanocomposites by controlling barium stannate contents (BaSnO3) aspiring to engage it into flexible optoelectronics and thermally stable capacitors. Herein, high purity BaSnO3 was synthesized by solid‐state route and loaded with different ratios (5–20 wt%) into PVA/PVP blend to form films by solution casting method. Further, the degree of crystallinity (Xc) was highly increased upon increasing the filler contents (BaSnO3), as confirmed by X‐ray diffractometer measurement. The surface morphology pictured by a field emission scanning electron microscope revealed the variation of the surface from smooth to rough surface upon insertion of BaSnO3. The thermodynamic parameters including enthalpy (ΔH), entropy (ΔS), and Gibb's free energy (ΔG) were extracted from TGA measurements and studied in detail. The optical characteristics of plain PVA/PVP and polymer nanocomposite films are explored by UV–Vis–NIR spectrophotometer. The presence of charge‐transfer complexes within the polymer nanocomposites was certified via shifting of band gap energy from 5.02 to 4.33 eV and variation of band tailing energy (Eu) from 0.22 to 0.44 eV. The real and imaginary part of optical conductivity (σp1, σp2) was confirmed to be enhanced with the insertion of BaSnO3. It is also found that the dielectric constant and DC current increased with the insertion of BaSnO3 content, while the dielectric loss decreases. The findings recommend these polymer nanocomposites as a good candidate for green energy applications and high‐performance capacitors.

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\mathrm{Moss}\kern2em n=\sqrt[4]{95/{E}_g}=3.12\sqrt[4]{E_g.}

$$ \mathrm{Herve}-\mathrm{Vandamme}\kern2em n=\sqrt{1+{\left(A/\left({E}_g+B\right)\right)}^2},\mathrm{A}=13.6\ \mathrm{eV},\mathrm{B}=3.47.

…”

Section: Resultsmentioning

confidence: 99%

“…The band gap is connected to the refractive index by many relations based on the photo effect studies derived by Mott and Gurney. Among these models, Moss, 93 Kumar and Sight, 94 Herve-Vandamme, 95 and Duffy, 96 which can be mathematically described below:…”

Section: Refractive Index and Extinction Coefficient And Optical Diel...mentioning

confidence: 99%

Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO₃ polymer nanocomposites as promising films for optoelectronics and energy storage applications

Al‐Sulami,

Al‐Nashri,

Al‐Mhyawi

et al. 2024

Polymers for Advanced Techs

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“…4, a, leads to two linear sections with different slopes (1 at low E and 2 at higher E). The latter indicates the possibility of describing the reverse VAC model of a current limited by a volumetric charge (the ideal Mott-Gurney model) [20].…”

Section: Volt-ampere Characteristics Of the Structurementioning

confidence: 99%

Effect of the thickness on electrical resistance of thin diamond-like carbon coatings on silicon substrate

Shmanay

Fedotova

et al. 2023

Physics of the Solid State

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The relationship between sp2/sp3-hybridizations ratio of atomic bonds in diamond-like carbon ( DLC --- Diamond-Like Carbon) and its electrical resistivity for coatings with a thickness in the range 22-70 nm prepared by vacuum arc deposition on silicon substrate of the KDB-8 brand has been established. It is established, that an increase in the coating thickness from 22 to 70 nm is accompanied by a decrease in the specific transverse electrical resistance of samples from 17 to 2 GΩ·m. This effect is explained by an increase in the proportion of carbon atoms with sp2-hybridization of electronic orbitals from 86 to 91%, which leads to the appearance of an additional number of π-bonds. A mathematical model, describing the spatial distribution of current when measuring transverse I-V characteristic, has been developed. The results obtained will be useful in creating resistive layers on the electrodes of gas-discharge detectors of charged particle to limit the amount of current in the event of rare spark discharges inside them caused by the registration of random highly ionizing particles. Keywords: ( DLC), electrical properties of thin films, hybridization of electronic orbitals, Raman scattering, I-V characteristic.

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“…4, а, приводит к двум линейным участкам с разными наклонами (1 при низких E и 2 при более высоких E). Последнее указывает на возможность описания обратной ВАХ моделью тока, ограниченного объемным зарядом (идеальная модель Мотта-Гурни) [20].…”

Section: вольт-амперные характеристики структурыunclassified

Влияние Толщины На Удельное Электросопротивление Тонких Покрытий Из Алмазоподобного Углерода На Кремнии

Зур¹,

Шманай²,

Федотова³

et al. 2023

Физика Твердого Тела

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The relationship between sp^2/sp^3 hybridizations ratio of atomic bonds in diamond-like carbon (DLC) and its electrical resistivity for coatings with a thickness in the range 22-70 nm prepared by vacuum arc deposition on silicon substrate of the SHB-8 brand has been established. It is established, that an increase in the coating thickness from 22 to 70 nm is accompanied by a decrease in the specific transverse electrical resistance of samples from 17 to 2 GOhm·m. This effect is explained by an increase in the proportion of carbon atoms with sp^2 hybridization of electronic orbitals from 86 to 91%, which leads to the appearance of an additional number of π-bonds. A mathematical model, describing the spatial distribution of current when measuring transverse I-V characteristic, has been developed. The results obtained will be useful in creating resistive layers on the electrodes of gas-discharge detectors of charged particle to limit the amount of current in the event of rare spark discharges inside them caused by the registration of random highly ionizing particles.

show abstract

Simplistic Theoretical Model for Optoelectronic Properties of Compound Semiconductors

Cited by 16 publications

References 34 publications

Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO₃ polymer nanocomposites as promising films for optoelectronics and energy storage applications

Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO₃ polymer nanocomposites as promising films for optoelectronics and energy storage applications

Effect of the thickness on electrical resistance of thin diamond-like carbon coatings on silicon substrate

Влияние Толщины На Удельное Электросопротивление Тонких Покрытий Из Алмазоподобного Углерода На Кремнии

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Simplistic Theoretical Model for Optoelectronic Properties of Compound Semiconductors

Cited by 16 publications

References 34 publications

Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO3 polymer nanocomposites as promising films for optoelectronics and energy storage applications

Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO3 polymer nanocomposites as promising films for optoelectronics and energy storage applications

Effect of the thickness on electrical resistance of thin diamond-like carbon coatings on silicon substrate

Влияние Толщины На Удельное Электросопротивление Тонких Покрытий Из Алмазоподобного Углерода На Кремнии

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Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO₃ polymer nanocomposites as promising films for optoelectronics and energy storage applications

Engineering the optical, and dielectric properties of (PVA: PVP)/BaSnO₃ polymer nanocomposites as promising films for optoelectronics and energy storage applications