Effect of UV Exposure on Some Optical Properties of As-Se Based Chalcogenide Glasses

Chauhan, Rashmi; Srivastava, Amit Kumar; Mishra, Madhu; Srivastava, Krishna

doi:10.1080/10584587.2010.489496

Cited by 32 publications

(6 citation statements)

References 15 publications

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“…The ε i value was greater than ε r in our optical examination, as shown in Table 2 . This indicated a strong interaction between photons and electrons as a result of which a red shift appeared and E g decreased [ 58 ].…”

Section: Resultsmentioning

confidence: 99%

Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells

et al. 2022

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One of the most amazing photovoltaic technologies for the future is the organic–inorganic lead halide perovskite solar cell, which exhibits excellent power conversion efficiency (PCE) and can be produced using a straightforward solution technique. Toxic lead in perovskite can be replaced by non-toxic alkaline earth metal cations because they keep the charge balance in the material and some of them match the Goldschmidt rule’s tolerance factor. Therefore, thin films of MAPbI3, 1% Bi and 0%, 0.5%, 1% and 1.5% Sn co-doped MAPbI3 were deposited on FTO-glass substrates by sol-gel spin-coating technique. XRD confirmed the co-doping of Bi–Sn in MAPbI3. The 1% Bi and 1% Sn co-doped film had a large grain size. The optical properties were calculated by UV-Vis spectroscopy. The 1% Bi and 1% Sn co-doped film had small Eg, which make it a good material for perovskite solar cells. These films were made into perovskite solar cells. The pure MAPbI3 film-based solar cell had a current density (Jsc) of 9.71 MA-cm−2, its open-circuit voltage (Voc) was 1.18 V, its fill factor (FF) was 0.609 and its efficiency (η) was 6.98%. All of these parameters were improved by the co-doping of Bi–Sn. The cell made from a co-doped MAPbI3 film with 1% Bi and 1% Sn had a high efficiency (10.03%).

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Section: Resultsmentioning

confidence: 99%

Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells

et al. 2022

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“…The expansion of rapidly evolving nanoscale bubbles propels vapor and molten material outward, ultimately yielding nanoparticles [10]. Laser ablation in liquids stands out as an efficient method for synthesizing nano-materials due to its operation under high-pressure, high-temperature conditions [4].…”

Section: Introductionmentioning

confidence: 99%

Optical Properties of Germanium Nanoparticles Prepared by Laser Ablation

Riyadh,

Mohammed Salman Mohammad,

Noorulhuda Riyadh Naser

2023

UTJsci

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The synthesis of germanium nanoparticles (Ge NPs) through pulsed laser ablation in deionized water is investigated for Nanophotonics and optoelectronic applications. This study delves into the influence of laser pulse energy on Ge NP properties, specifically highlighting size control and optical characteristics. Our findings reveal a significant reduction in Ge NP size, from an initial 30 nm to 20 nm, as the laser pulse energy increases. Notably, we observed size-dependent blue luminescence from the synthesized Ge NPs. This controlled synthesis holds promise for optoelectronics and sensing applications. The study provides valuable insights into precise Ge NP synthesis and underscores their intriguing optical properties, paving the way for advanced Nanophotonic devices.

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“…22 However, the addition of tellurium (Te) into the binary enhances their photosensitivity, hardness, crystallization temperature, and also has a smaller aging effect. 23,24 Te also resists oxidation by air and is also non-volatile in nature. Te-based Ag-Se materials are extensively used as it provides strength to the composite and improves the machinability of the alloys.…”

Section: Introductionmentioning

confidence: 99%

“…However, the addition of tellurium (Te) into the binary enhances their photosensitivity, hardness, crystallization temperature, and also has a smaller aging effect 23,24 . Te also resists oxidation by air and is also non‐volatile in nature.…”

Section: Introductionmentioning

confidence: 99%

Role of tellurium addition on the linear and non‐linear optical, structural, morphological properties of Ag_60‐_xSe₄₀Te_x thin films for nonlinear applications

Das¹,

Priyadarshini²,

Alagarasan

et al. 2022

J Am Ceram Soc

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The tellurium (Te)-doped Ag 60-x Se 40 Te x (x = 0%, 5%, 10%, 15%) thin films of thickness ∼800 nm were prepared from the bulk sample by thermal evaporation method on a glass substrate. The X-ray diffraction study revealed the amorphous nature of the films whereas the change in vibrational modes was noticed from the Raman spectroscopy. The composition of the films was verified by energy dispersive X-ray analysis and the surface morphology pictures were taken by field emission scanning electron microscopy and atomic force microscope. The changes in optical properties (linear and non-linear) with Te addition were studied from UV-Visible spectroscopy data and related empirical formulas. The addition of Te reduced the bandgap values significantly and the reduction in transmission resulted in the increase of the linear refractive index. The decrease in optical bandgap is due to an increase in disorder while the width of the tail in the gap increased with Te%. The optical density, dispersion energy, extinction coefficient, carrier concentration, dielectric constant, oscillator wavelength increased while the oscillator energy, oscillator strength, optical electronegativity decreased with Te content. The electrical susceptibility increased with Te content. The non-linear susceptibilities and the non-linear refractive index increased which is good for the nonlinear photonic devices.

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Effect of UV Exposure on Some Optical Properties of As-Se Based Chalcogenide Glasses

Cited by 32 publications

References 15 publications

Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells

Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells

Optical Properties of Germanium Nanoparticles Prepared by Laser Ablation

Role of tellurium addition on the linear and non‐linear optical, structural, morphological properties of Ag_60‐_xSe₄₀Te_x thin films for nonlinear applications

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Effect of UV Exposure on Some Optical Properties of As-Se Based Chalcogenide Glasses

Cited by 32 publications

References 15 publications

Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells

Bi and Sn Doping Improved the Structural, Optical and Photovoltaic Properties of MAPbI3-Based Perovskite Solar Cells

Optical Properties of Germanium Nanoparticles Prepared by Laser Ablation

Role of tellurium addition on the linear and non‐linear optical, structural, morphological properties of Ag60‐xSe40Tex thin films for nonlinear applications

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Product

Resources

About

Role of tellurium addition on the linear and non‐linear optical, structural, morphological properties of Ag_60‐_xSe₄₀Te_x thin films for nonlinear applications