Crystallization behaviors of glasses in the (Ge5Sb25Se70)1-xAgx system

Hu, Hao; Zeng, Huidan; Li, Lei; Wang, Yang; Guo, Yangyang; Jiang, Yejia; Sun, Luyi; Chen, Guorong

doi:10.1016/j.ceramint.2019.04.244

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…33 The addition of Ag atoms probably disrupted the cross-linking correlation of the network structure, as indicated by its action as a modifier in the Ge 5 Sb 25 Se 70 and AsSe(Te) 2/3 glass topological networks. 34 The Dietzel stability criterion ΔT = T c − T g is widely employed to analyze the thermal stability of amorphous materials. 35 The values of ΔT for all of the researched samples (A0 to A15) in this work, the ΔT values were comparatively minor and reduced from 37 K (A0) to 18 K (A15).…”

Section: Resultsmentioning

confidence: 99%

“…The analogous experimental characteristics were also observed for Ag x (Ge 5 Sb 25 Se 70 ) 1– x and Ag 30+ x As 28– x Se 21 Te 21 glass systems . The addition of Ag atoms probably disrupted the cross-linking correlation of the network structure, as indicated by its action as a modifier in the Ge 5 Sb 25 Se 70 and AsSe(Te) 2/3 glass topological networks …”

Section: Resultsmentioning

confidence: 99%

“…Room-temperature electrical conductivity (σ) as a function of glass transition temperature ( T g ) for Ag–Ga 2 Te 3 –SnTe glasses and typical tellurium-based glasses (refs − , − , − ). The doping concentration is between 5–20% (A) and 5 −35% (B).…”

Section: Resultsmentioning

confidence: 99%

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High-Conductivity Chalcogenide Glasses in Ag–Ga₂Te₃–SnTe Systems and Their Suitability as Thermoelectric Materials

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A novel high-conductivity Ag x [(Ga 2 Te 3 ) 34 (SnTe) 66 ] 100−x tellurium-based glassy system was fabricated via melt spinning with the glass formation area in the range of x = 0−15 mol %. A bulk Ag 10 [(Ga 2 Te 3 ) 34 (SnTe) 66 ] 90 glass (A10) was obtained via spark plasma sintering at 450 K using a 5 min dwell time and 400 MPa pressure. The fabricated A10 glass exhibited higher room-temperature conductivity (σ 300 K = 46 S m −1 ), larger glass transition temperature (T g = 482 K), and ultralower thermal conductivity (∼0.19 W m −1 K −1 ) compared to those of previously reported Cu−Ge−Te, Cu−As−Te, Cu−Ge−As−Te, and Cu−As−Se−Te glassy systems with the approximate doping concentrations of 5−20%, demonstrating that this distinctive Ag−Ga 2 Te 3 −SnTe system is interesting materials for thermoelectric applications. The high-conductivity Ag−Ga 2 Te 3 −SnTe glassy system will extend investigations into similar glassy semiconductors and also can be used for preparing glass ceramics with potential applications in other fields.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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High-Conductivity Chalcogenide Glasses in Ag–Ga₂Te₃–SnTe Systems and Their Suitability as Thermoelectric Materials

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One‐Step Hydrothermal Deposition of AgSbS_2‐xSe_x Thin Films for Solar Cell Applications

Peng,

Sheng,

Gao

et al. 2024

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AgSbS2‐xSex is a promising light‐harvesting material for thin film solar cells, characterized by nontoxicity, high chemical stability, and excellent optoelectronic properties. However, the complex chemical composition of AgSbS2‐xSex poses significant challenges to thin film preparation, giving rise to an intensive dependence on multi‐step preparation methods. Herein, a hydrothermal method is developed for depositing AgSbS2‐xSex films and achieves one‐step preparation of this kind of thin film materials for the first time. This method can provide sufficient energy for atomic nucleation and adsorption on the substrate surface to promote nuclei aggregation and grow into films. Meanwhile, it achieves control of the chemical kinetics of the deposition solution by introducing EDTA‐2Na as an additive and suppressing the enrichment of Ag2Se impurities at the substrate interface. As a result, a high‐purity AgSbS2‐xSex film with compact and flat morphology is prepared and assembled into solar cells. The device delivers a power conversion efficiency of 3.04% under standard illumination, which is currently the highest efficiency for AgSbS2‐xSex solar cells fabricated by the one‐step method. This study provides a facile and promising method for the controllable preparation of high‐quality AgSbS2‐xSex thin films and promoting their application in solar cells.

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Chalcogenide glass for thermoelectric application

Kang¹,

Fu²,

Gu³

et al. 2022

Journal of Non-Crystalline Solids: X

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Crystallization behaviors of glasses in the (Ge5Sb25Se70)1-xAgx system

Cited by 4 publications

References 25 publications

High-Conductivity Chalcogenide Glasses in Ag–Ga₂Te₃–SnTe Systems and Their Suitability as Thermoelectric Materials

High-Conductivity Chalcogenide Glasses in Ag–Ga₂Te₃–SnTe Systems and Their Suitability as Thermoelectric Materials

One‐Step Hydrothermal Deposition of AgSbS_2‐xSe_x Thin Films for Solar Cell Applications

Chalcogenide glass for thermoelectric application

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Crystallization behaviors of glasses in the (Ge5Sb25Se70)1-xAgx system

Cited by 4 publications

References 25 publications

High-Conductivity Chalcogenide Glasses in Ag–Ga2Te3–SnTe Systems and Their Suitability as Thermoelectric Materials

High-Conductivity Chalcogenide Glasses in Ag–Ga2Te3–SnTe Systems and Their Suitability as Thermoelectric Materials

One‐Step Hydrothermal Deposition of AgSbS2‐xSex Thin Films for Solar Cell Applications

Chalcogenide glass for thermoelectric application

Contact Info

Product

Resources

About

High-Conductivity Chalcogenide Glasses in Ag–Ga₂Te₃–SnTe Systems and Their Suitability as Thermoelectric Materials

High-Conductivity Chalcogenide Glasses in Ag–Ga₂Te₃–SnTe Systems and Their Suitability as Thermoelectric Materials

One‐Step Hydrothermal Deposition of AgSbS_2‐xSe_x Thin Films for Solar Cell Applications