Tunability of structural, optical, and electrical properties of pristine MnSe thin film by gradually changing temperature for optoelectronic applications

Qasem, Ammar; Saïd, Nejla Mahjoub; Hassan, Abeer A.; Yakout, H.A.; Shaaban, E.R.

doi:10.1016/j.physb.2021.413600

Cited by 28 publications

(7 citation statements)

References 50 publications

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“…As well, the absorption behavior increases as the thickness of the CdS layer increases, especially in the UV range [47]. In addition, the non-zero value of light absorption observed at energies less than the original absorption edge is owing to light absorption at the grain boundaries [48,49].…”

Section: Optical Propertiesmentioning

confidence: 96%

Studying the structural, optical spectroscopic ellipsometry and electrical properties of variable-CdS thickness/CdTe for solar cell applications

Sebak¹,

Ghalab²,

El-Taher³

et al. 2022

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"The structural and optical properties of CdS window layer at different thicknesses in the range of (100-300 nm) deposited on pre-cleaned glass substrates (CdS/glasses) via the thermal evaporation process are studied in the current work. The structural analysis is done using Rietveld refinement and atomic pressure microscope techniques. The films of CdS/glass showcase a wurtzite behavior. XRD and AFM tests are confirmed that the structural parameters improve as the thickness of the CdS-layer increases. The optical constants (the refractive index n, the extinction coefficient, k and the bandgap energy values are estimated from spectroscopic ellipsometry (SE) via the construction of an optical model. The refractive index of the CdS/glass films increases with the increase of CdS-layer thickness. This, in turn, is due to the rise of the size of the crystal in the thin layers. It is also found that as the thickness of the CdS-layer rises, so does the overall behavior of the extinction coefficient. Additionally, the bandgap energy of the direct transition decreases from 2.45 eV (d=100 nm) to 2.25 eV (d=300 nm). The dark and illumination I-V photovoltaic characteristics of fabricated devices are explored by depositing a p-CdTe thin layer (500 nm) over varying thicknesses of CdS thin films (100- 300 nm) prepared on glass substrates (2 mm) and thus, the Ni/n-CdS/i-AgSe/p-CdTe/Pt heterojunction has been successfully fabricated with an AgSe buffer layer deposited directly on the p-CdTe absorber laryer. The n-CdS window layer is deposited on i-AgSe buffer layer. In dark conditions, based on the dependence of the forward and reverse current-voltage, the essential behavior related to the fabricated diode has been determined. As well, in the illumination case, the open-circuit voltage, the short-circuit current, the fill factor, the power conversion efficiency, (PCE), photoresponsivity, quantum efficiency, dependence of generated photocurrent on the light intensity, dependence of the generated photocurrent on wavelength (λ)for the studied solar cell are computed and discussed."

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Section: Optical Propertiesmentioning

confidence: 96%

Studying the structural, optical spectroscopic ellipsometry and electrical properties of variable-CdS thickness/CdTe for solar cell applications

Sebak¹,

Ghalab²,

El-Taher³

et al. 2022

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“…This, in turn, contributes to a deeper comprehension of their electrical characteristics and performance attributes. The dielectric constant components and the loss factor are depicted in figures 11-13 are derived from the following formula [49]:…”

Section: Optical Constants and Loss Factormentioning

confidence: 99%

Ramifications of chromium-to-bismuth ions substitution on the structural and optical characteristics of bismuth borate glasses for optoelectronic applications

Moustafa,

Mokhtar,

Abdelwahed

et al. 2024

Phys. Scr.

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The exploration of optoelectronic materials with distinctive properties is still ongoing. To this end, a series of quaternary glassy materials of the composition 15Na2O–65B2O3–(20–x)Bi2O3–xCr2O3, denoted as NBBC, is synthesized using the melt quenching method, where x = 0.0, 2.0, 4.0, 6.0, 8.0, and 10.0 mol%. X-ray diffraction (XRD) confirms that the glasses under investigation are amorphous, except for the sample with a molar ratio of 10% Cr2O3, which showed a polycrystalline structure. FTIR analysis of the NBBC glasses reveals structural changes affecting Bi-O and B-O vibrations, suggesting a correlation between composition and optical properties. Interestingly, the bandgap energy of the NBBC glasses, determined optically, demonstrates a reduction from 2.881 eV to 1.941 eV with increasing Cr2O3 content. Conversely, the tail energy exhibits an opposite trend. The observed reduction in the bandgap with increasing Cr-ions is attributed to the introduction of chromium in the glassy matrix which changes the electronic structure and enhances the light absorption efficiency. Furthermore, various optical parameters are calculated, such as the optical constants, dielectric constants, loss energy, the density of coverage, sheet resistance, the figure of merit factor, and dispersion parameters. Notably, all of these parameters demonstrate a remarkable sensitivity to the gradual increment of chromium ions. These findings imply that the NBBC glasses could be appropriate for optoelectronic purposes.

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“…In fact, when the recombination speed increases, the diode acts like a resistor, hindering the flow and passage of current [32][33][34][35][36]. The integration and interdependence in the properties of chalcogenide compounds, or those that contain at least a chalcogen element, or that are based in their synthesis on silicon and transitional elements, were received extensive studies, as the optical and electrical properties have been employed to determine the suitability of these systems for photovoltaic applications, especially for various uses in solar cells [37][38][39][40][41][42], optoelectronics [43][44][45][46][47][48][49][50][51][52][53][54][55][56], and electrodes [57][58][59][60]. Based on these studies, our current study was a link between the theoretical and experimental parts of the different system compositions of the studied solar cells.…”

Section: (I-v) and (P-v) Data As A Function Of The Solar Irradiance ψmentioning

confidence: 99%

Exceptional and innovational analysis of n-CdS/p-Si solar cells based on software packages and bias point models: insights into theoretical and experimental characteristics of fabricated solar cells

Hassan¹,

Al‐nami²,

Alrafai³

et al. 2023

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The characteristics of a single solar cell made by CdS thin film deposition on a silicon glass substrate were estimated using simulation models in this study. An aluminum electrode was attached to a silicon wafer to produce a heterojunction, and the indium fingers were fashioned into another electrode and connected directly to the CdS layer. Simulation steps were performed using PV*SOL 3.0 software package and bias points (ISC, VOC ) models. In addition to the use of advanced programs such as MATLAB software (Shell SQ150 PV module), Mathcad 2000 program, and Origin Lab 2019 program.Simulation programs for extracting photovoltaic parameters have been executed together with the laboratory procedures. The simulation programs and experimental procedures aimed in general to know the (current-voltage) and (power-voltage) characteristics of the studied single-diode photovoltaic.

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Tunability of structural, optical, and electrical properties of pristine MnSe thin film by gradually changing temperature for optoelectronic applications

Cited by 28 publications

References 50 publications

Studying the structural, optical spectroscopic ellipsometry and electrical properties of variable-CdS thickness/CdTe for solar cell applications

Studying the structural, optical spectroscopic ellipsometry and electrical properties of variable-CdS thickness/CdTe for solar cell applications

Ramifications of chromium-to-bismuth ions substitution on the structural and optical characteristics of bismuth borate glasses for optoelectronic applications

Exceptional and innovational analysis of n-CdS/p-Si solar cells based on software packages and bias point models: insights into theoretical and experimental characteristics of fabricated solar cells

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