Spectroscopic properties of Yb3+ doped TeO2–TiO2–Bi2O3 laser glasses

Lin, Shu; Shi, Dong-Yang; Feng, Ailing; Xu, Qiang; Zhao, Lei; Dong, Jinhua; Liu, Chun-Xiao

doi:10.1016/j.rinp.2019.102852

Cited by 7 publications

(1 citation statement)

References 23 publications

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“…Similar results could be obtained from the Raman spectroscopy of the Te AC @NCNS at pristine, discharged, and recharged states. As shown in Figure 5c, except for the vibration peak of Li 2 CO 3 (1087 cm −1 ), a new peak at 742 cm −1 appears after discharging, which is attributed to the TeO vibrations [ 35,36 ] and vanishes after subsequently recharging. This phenomenon was not observed in the Raman spectrum of the discharged NCNS (Figure S20, Supporting Information), which only exhibits an extra peak related to the Li 2 CO 3 .…”

Section: Resultsmentioning

confidence: 99%

Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO₂ Battery

Wang

Liu

et al. 2023

Advanced Science

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Rechargeable Li‐CO2 battery represents a sustainable technology by virtue of CO2 recyclability and energy storage capability. Unfortunately, the sluggish mass transport and electron transfer in bulky high‐crystalline discharge product of Li2CO3, severely hinder its practical capacity and rechargeability. Herein, a heterostructure of isolated metalloid Te atomic cluster anchored on N‐doped carbon nanosheets is designed (TeAC@NCNS) as a metal‐free cathode for Li‐CO2 battery. X‐ray absorption spectroscopy analysis demonstrates that the abundant and dispersed Te active centers can be stabilized by C atoms in form of the covalent bond. The fabricated battery shows an unprecedented full‐discharge capacity of 28.35 mAh cm−2 at 0.05 mA cm−2 and long‐term cycle life of up to 1000 h even at a high cut‐off capacity of 1 mAh cm−2. A series of ex situ characterizations combined with theoretical calculations demonstrate that the abundant Te atomic clusters acting as active centers can drive the electron redistribution of carbonate via forming TeO bonds, giving rise to poor‐crystalline Li2CO3 film during the discharge process. Moreover, the efficient electron transfer between the Te centers and intermediate species is energetically beneficial for nucleation and accelerates the decomposition of Li2CO3 on the TeAC@NCNS during the discharge/charge process.

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Section: Resultsmentioning

confidence: 99%

Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO₂ Battery

Wang

Liu

et al. 2023

Advanced Science

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Phonon‐Assisted Anti‐Stokes Fluorescence of an Yb³⁺‐Doped Oxide Glass: Phononics and Spectroscopic Analysis of Its Prospects as Solid‐State Laser Cooler

Debnath

2020

Physica Status Solidi (b)

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Phonon-assisted anti-Stokes fluorescence is observed in an Yb 3þ doped, 30 mol% BaO containing tellurite glass for the first time. Absorption, excitation, and the anti-Stokes fluorescence spectra of the glass show a phonon progression of 150 cm À1. The phonon is identified as the combined vibrational mode of rocking of the nonbridging oxygen atoms of both TeO 3 À and its dimer Te 2 O 5 2À units and the bending of the Te-O-Te linkage of the Te 2 O 5 2À units of the glass structure. These units are known to exist in plenty in such BaO-TeO 2 glasses with high BaO content. Association of the phonon modes with the absorption and anti-Stokes fluorescence spectra of Yb 3þ of the glass, strongly suggests that the phonon is coupled both with the 2 F 7/2 (1) ground and the 2 F 5/2 (5) excited states of the ion; and the observed anti-Stokes fluorescence originates through annihilation of the excited state manifolds of this coupled phonon. Phononics and spectroscopic analysis of the anti-Stokes fluorescence process suggest that the material should be prospective for use as solid-state laser cooler.

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Synthesis, XRD, UV-Vis spectra and photoluminescent properties of TeO2-based glasses doped with Yb3+ and Bi3+

Altowyan

Hammoud

Al‐Qaisi

et al. 2022

Optik

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Spectroscopic properties of Yb3+ doped TeO2–TiO2–Bi2O3 laser glasses

Cited by 7 publications

References 23 publications

Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO₂ Battery

Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO₂ Battery

Phonon‐Assisted Anti‐Stokes Fluorescence of an Yb³⁺‐Doped Oxide Glass: Phononics and Spectroscopic Analysis of Its Prospects as Solid‐State Laser Cooler

Synthesis, XRD, UV-Vis spectra and photoluminescent properties of TeO2-based glasses doped with Yb3+ and Bi3+

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Spectroscopic properties of Yb3+ doped TeO2–TiO2–Bi2O3 laser glasses

Cited by 7 publications

References 23 publications

Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO2 Battery

Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO2 Battery

Phonon‐Assisted Anti‐Stokes Fluorescence of an Yb3+‐Doped Oxide Glass: Phononics and Spectroscopic Analysis of Its Prospects as Solid‐State Laser Cooler

Synthesis, XRD, UV-Vis spectra and photoluminescent properties of TeO2-based glasses doped with Yb3+ and Bi3+

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Product

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Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO₂ Battery

Isolated Metalloid Tellurium Atomic Cluster on Nitrogen‐Doped Carbon Nanosheet for High‐Capacity Rechargeable Lithium‐CO₂ Battery

Phonon‐Assisted Anti‐Stokes Fluorescence of an Yb³⁺‐Doped Oxide Glass: Phononics and Spectroscopic Analysis of Its Prospects as Solid‐State Laser Cooler