Preparation of quaternary solution processed chalcogenide thin films using mixtures of separate As40S60 and Ge20Sb5S75 glass solutions

Jancalek, Jiri; Šlang, Stanislav; Kurka, Michal; Pálka, Karel

doi:10.1016/j.jnoncrysol.2021.120833

Cited by 5 publications

(4 citation statements)

References 49 publications

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“…using the same solvent mixture MeOH-PrNH 2 , hard-bake temperature 210 °C and evaluation of optical properties as a double layered thin film with bottom and top sub-layer). Our previous works 21 , 22 demonstrated the possibility of altering (tailoring) of the thin films optical properties by mixing solutions of two different chalcogenide glasses with different optical properties. Thin films prepared from mixed solutions then showed linear combinations of optical properties of the two source glasses.…”

Section: Resultsmentioning

confidence: 99%

“…The doping of the source glass solution by silver has also been intensively studied 17 , 18 due to significant changes in physical and chemical properties, which silver induces when introduced to the glass structure 19 , 20 . Furthermore, solutions of different chalcogenide glasses can often be mixed together, providing a source solution of complex composition from simple (binary or ternary) glasses 21 , 22 . The structure of the prepared thin film can be influenced by the introduction of nanostructures of different materials (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Solution processed multi-layered thin films of Ge20Sb5S75 and Ge20Sb5Se75 chalcogenide glasses

Jemelka,

Palka,

Janicek

et al. 2023

Sci Rep

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Solution processed non-toxic Ge20Sb5Se75 chalcogenide glass thin films were deposited using spin-coating method from n-propylamine—methanol solvent mixture in specular optical quality. Optical properties, composition, structure, and chemical resistance were studied in dependence on the annealing temperature. Significant increase of refractive index and chemical resistance caused by thermoinduced structural polymerization and release of organic residua were observed. The high chemical resistance of hard-baked thin films allowed repeated direct depositions by spin-coating, increasing total thickness. Multilayered thin films of amorphous Ge20Sb5Se75 and Ge20Sb5S75 were also successfully prepared by direct deposition for the first time. Solution based deposition of non-toxic Ge20Sb5Se75 thin films in specular optical quality significantly widens the applicability of solution processed chalcogenide glass thin films. Moreover, solution based direct deposition of different glasses on hard-baked thin films opens the way to simple and cost-effective preparation of more sophisticated optical elements (e.g. beam splitters, photonic mirrors).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solution processed multi-layered thin films of Ge20Sb5S75 and Ge20Sb5Se75 chalcogenide glasses

Jemelka,

Palka,

Janicek

et al. 2023

Sci Rep

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“…1−3 Because of these extraordinary qualities, it has wide applications in optical fibers, photovoltaic devices, xerography, and detectors. 4,5 Chalcogenide materials are used in optoelectronics and show significant transmission in near-and farinfrared spectral regions.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, this special class of material, so-called chalcogenides has significantly dominated the field of semiconductors and been the primary choice because of their multifunctional behavior. Moreover, this material exhibits impressive optical properties such as a wide transparency window, a high photosensitivity, and a low phonon energy. − Because of these extraordinary qualities, it has wide applications in optical fibers, photovoltaic devices, xerography, and detectors. , Chalcogenide materials are used in optoelectronics and show significant transmission in near- and far-infrared spectral regions.…”

Section: Introductionmentioning

confidence: 99%

Thermal Annealing-Induced Transformation of Structural, Morphological, Linear, and Nonlinear Optical Parameters of Quaternary As₂₀Ag₁₀Te₁₀Se₆₀ Thin Films for Optical Applications

Das¹,

Senapati²,

Alagarasan

et al. 2022

ACS Appl. Opt. Mater.

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This work focuses on the structural, optical, and morphological modifications in As 20 Ag 10 Te 10 Se 60 quaternary thin films that are ∼800 nm thick upon thermal annealing at different temperatures. The structure is analyzed by Xray diffraction that reveals the phase transformation (amorphous to crystalline) due to annealing. This material's phase transition enables it to be used in memory device applications. The increase in particle size is confirmed by field emission scanning electron microscopy of the surface. The increase in particle size signifies the agglomeration occurs at higher annealing temperatures. The optical transmittance shows a red shift toward a lower photon energy as recorded by the ultraviolet−visible spectrometer. The optical bandgap of the films decreases (1.84 to 1.72 eV), whereas the refractive index increases as calculated from the Swanepoel method. The decrease in the bandgap is attributed to the increases in the localized states. The amorphous to crystalline transition results in a significant increase in the third-order nonlinear susceptibility (from 4.524 × 10 −11 to 14.146 × 10 −11 esu). The nonlinear refractive index is found to increase from 5.385 × 10 −10 to 14.786 × 10 −10 esu upon annealing. The static and high-frequency dielectric constant increases with the increase in oscillator and dispersion energy. The observed changes are explained on the basis of phase transformation and the density of defect states. The enhanced value of the nonlinear refractive index with a reduced optical electronegativity and carrier concentration with annealing is useful for nonlinear optical devices.

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All wet preparation of Ag-As33S67 thin films by silver ions photodiffusion from silver nitrate solution

Kurka,

Palka,

Jancalek

et al. 2023

Journal of Non-Crystalline Solids

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Preparation of quaternary solution processed chalcogenide thin films using mixtures of separate As40S60 and Ge20Sb5S75 glass solutions

Cited by 5 publications

References 49 publications

Solution processed multi-layered thin films of Ge20Sb5S75 and Ge20Sb5Se75 chalcogenide glasses

Solution processed multi-layered thin films of Ge20Sb5S75 and Ge20Sb5Se75 chalcogenide glasses

Thermal Annealing-Induced Transformation of Structural, Morphological, Linear, and Nonlinear Optical Parameters of Quaternary As₂₀Ag₁₀Te₁₀Se₆₀ Thin Films for Optical Applications

All wet preparation of Ag-As33S67 thin films by silver ions photodiffusion from silver nitrate solution

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Preparation of quaternary solution processed chalcogenide thin films using mixtures of separate As40S60 and Ge20Sb5S75 glass solutions

Cited by 5 publications

References 49 publications

Solution processed multi-layered thin films of Ge20Sb5S75 and Ge20Sb5Se75 chalcogenide glasses

Solution processed multi-layered thin films of Ge20Sb5S75 and Ge20Sb5Se75 chalcogenide glasses

Thermal Annealing-Induced Transformation of Structural, Morphological, Linear, and Nonlinear Optical Parameters of Quaternary As20Ag10Te10Se60 Thin Films for Optical Applications

All wet preparation of Ag-As33S67 thin films by silver ions photodiffusion from silver nitrate solution

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Thermal Annealing-Induced Transformation of Structural, Morphological, Linear, and Nonlinear Optical Parameters of Quaternary As₂₀Ag₁₀Te₁₀Se₆₀ Thin Films for Optical Applications