Thin films of tin sulfides: structure, composition and optoelectronic properties

Avellaneda, David Avellaneda; Sánchez-Orozco, I; Aguilar-Martínez, J.A.; Shaji, Sadasivan

doi:10.1088/2053-1591/aae3a9

Cited by 30 publications

(9 citation statements)

References 50 publications

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“…Moreover, the binding energies at 486.5 and 495.0 eV correspond to 3d 5/2 and 3d 3/2, respectively, in Sn 3d spectrum, indicating the presence of a reduction state of Sn 3 + . [25][26][27][28] The binding energy difference between Sn 3d 5/2 and Sn 3d 3/2 is 8.4 eV, which was identical to results reported by Avellaneda et al [27] The highresolution S 2p spectrum of the S-2 sample can be split into two peaks at 161.4 and 162.6 eV, corresponding to S 2p 3/2 and S 2p 1/2 , respectively, suggesting the existence of S 1.5À in the sample. [25][26][27][28] Morphologies and microstructures of these samples were studied by SEM.…”

Section: Resultssupporting

confidence: 88%

Nano Sn₂S₃ Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries

et al. 2021

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Metallic tin (Sn) compounds are viewed as promising candidates for sodium-ion batteries (SIB) anode materials yet suffer from large volume expansion and limited electrode kinetics. Manufacturing rational structure is a crucial factor to achieve high-efficiency sodium storage for SIBs. In this study, nano Sn 2 S 3 embedded in nitrogenous-carbon compounds (nano-Sn 2 S 3 /C) was designed for SIB anode materials via a facile three-step strategy: precipitation, heat treatment and vulcanization with no templating agent. Density functional theory calculations suggested that Sn 2 S 3 displayed a low Na + diffusion energy barrier and the SnÀ S bonds could be rebuilt during the sodiation/de-sodiation process. Notably, electrochemical measurements coupled with ex-situ X-ray diffraction and ex-situ transmission electron microscopy were proposed to reveal the underlying Na + storage mechanisms. Sn 2 S 3 acted as a highcapacity composition, while the porous nitrogenous-carbon matrix served as a rigid-conductive frame to accommodate the volume expansion and prevented the aggregation of nano Sn 2 S 3 . The rationally generated architectures benefited greatly in rate capacity and structural stability. As expected, the asprepared nano Sn 2 S 3 /C exhibited remarkable rate capabilities with a specific capacity of 603 and 160 mAh g À 1 under typical conditions at 0.2 and 4 A g À 1 , respectively. This work may trigger new enthusiasm for engineering high-performance SIB anode materials.

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Section: Resultssupporting

confidence: 88%

Nano Sn₂S₃ Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries

et al. 2021

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“…Figure shows the comparison between the experimental diffraction patterns of the S‐Sn electrode and of the metallic Sn nanopowder used for material synthesis, as well as the theoretical data of elemental sulfur (red diagram) and metallic tin (blue diagram) indicated according to the powder diffraction file (PDF) numbers. The S‐Sn pattern shows reflection peaks ascribable exclusively to orthorhombic sulfur (S 8 , PDF # 85‐0799) and tetragonal tin (Sn, PDF # 86‐2265), without signs of Sn/S compounds such as SnS (tin sulfide), thus suggesting only physical mixing between the two elements without chemical reaction or impurity, as indeed expected by the low temperature adopted for the material synthesis (i.e., 120 °C). This important result excludes possible side reactions of sulfide species during the electrochemical process in the lithium cell which can affect the reversibility and the voltage shape of the material, expected instead to reflect only the reaction of sulfur with lithium .…”

Section: Resultsmentioning

confidence: 66%

Sulfur Loaded by Nanometric Tin as a New Electrode for High‐Performance Lithium/Sulfur Batteries

Marangon

Hassoun

2019

Energy Tech

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Herein, a composite material formed by coating sulfur on nanometric tin is investigated as the cathode for high‐performance lithium/sulfur (Li/S) batteries. The study includes structural and morphological characterization performed by X‐ray diffraction and electron microscopy, as well as electrochemical investigation by means of voltammetry, electrochemical impedance spectroscopy, and galvanostatic cycling in lithium cell. The data show an electrode reflecting the crystalline structure of S8 and Sn, with a suitable morphology that consists of micrometric sulfur particles surrounding a metallic core of nanometric tin. This particular configuration leads to optimal behavior in the lithium cell, with a highly reversible electrochemical process evolving between 1.9 and 2.8 V versus Li+/Li and low polarization. The S‐Sn composite shows a favorable electrode/electrolyte interphase having a resistance limited to few ohms after the first activation charge/discharge cycle in the Li/S cell, which allows suitable operation with excellent rate capability and limited capacity fading. Indeed, the cell shows an efficiency approaching 100% upon the first cycle, a maximum specific capacity of about 1200 mAh g−1 at C/10 rate, and still a relevant capacity value of about 700 mAh g−1 at the relatively high C‐rate of 2 C, with suitable retention upon 100 charge/discharge cycles.

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Section: Emerging Chalcogenidesmentioning

confidence: 99%

Emerging Chalcogenide Thin Films for Solar Energy Harvesting Devices

et al. 2021

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Chalcogenide semiconductors offer excellent optoelectronic properties for their use in solar cells, exemplified by the commercialization of Cu(In,Ga)Se 2 -and CdTe-based photovoltaic technologies. Recently, several other chalcogenides have emerged as promising photoabsorbers for energy harvesting through the conversion of solar energy to electricity and fuels. The goal of this review is to summarize the development of emerging binary

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Thin films of tin sulfides: structure, composition and optoelectronic properties

Cited by 30 publications

References 50 publications

Nano Sn₂S₃ Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries

Nano Sn₂S₃ Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries

Sulfur Loaded by Nanometric Tin as a New Electrode for High‐Performance Lithium/Sulfur Batteries

Emerging Chalcogenide Thin Films for Solar Energy Harvesting Devices

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Thin films of tin sulfides: structure, composition and optoelectronic properties

Cited by 30 publications

References 50 publications

Nano Sn2S3 Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries

Nano Sn2S3 Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries

Sulfur Loaded by Nanometric Tin as a New Electrode for High‐Performance Lithium/Sulfur Batteries

Emerging Chalcogenide Thin Films for Solar Energy Harvesting Devices

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Product

Resources

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Nano Sn₂S₃ Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries

Nano Sn₂S₃ Embedded in Nitrogenous‐Carbon Compounds for Long‐Life and High‐Rate Cycling Sodium‐Ion Batteries