Probing Surface Information of Alloy by Time of Flight-Secondary Ion Mass Spectrometer

Song, Tinglu; Zou, Meishuai; Lu, Defeng; Chen, Hanyuan; Wang, Benpeng; Wang, Shuo; Xu, Fan

doi:10.3390/cryst11121465

Cited by 9 publications

(4 citation statements)

References 32 publications

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“…In addition, the F and LiF distributions of the artificially modified Li 3 BO 3 film are less than those of the original SEI film of the bare Li anode. The composition and content of the SEI film on the surface of the Li anode changed under the protection of the artificial Li 3 BO 3 film, which indicated that it reduced the side reactions between the metal Li anode and the liquid electrolytes. ,− Consequently, the artificial Li 3 BO 3 film can effectively alleviate the volume change of Li anodes, inhibit the growth of Li dendrites, and increase the cycling stability of the Li metal anode and the battery life.…”

Section: Resultsmentioning

confidence: 99%

Artificial Solid Electrolyte Interphase Engineering toward Dendrite-Free Lithium Anodes

Ding

Xin

Wang

et al. 2023

ACS Sustainable Chem. Eng.

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As lithium (Li) metal has the highest specific capacity (3860 mAh g −1 ) and lowest anode potential (−3.04 V vs SHE), it is considered as the optimal choice of anode materials for new energy storage devices. However, the unstable Li plating/stripping behavior of the solid electrolyte interphase (SEI) on the Li anode surface triggers the common Li dendrite growth and side reactions between Li metal and electrolytes. The construction of an artificial SEI on the surface of lithium anodes is one of the effective approaches to improve the ionic conductivity, suppress the growth of lithium dendrite, and address the problem of low reversibility of lithium anodes. However, it remains a difficult problem to construct a uniform artificial SEI due to the lack of stability. Herein, an artificial Li 3 BO 3 SEI film is synthesized through a facile, environmentally friendly, and inexpensive in situ reaction between boric acid and anodes to address the difficult issues. The artificial Li 3 BO 3 protective layer exhibits a stable dendrite-free cycling behavior after 900 h at 1.0 mA cm −2 in the Li symmetrical cell. The Coulombic efficiency of the Li|LiFePO 4 batteries is close to 100% after 500 cycles, which is better than those of the unmodified bare samples. In addition, Li-Li 3 BO 3 also shows excellent electrochemical performance in lithium−sulfur (Li−S) batteries. These innovative findings provide new insights into the interfacial issues of Li metal anode protection and are expected to be a promising strategy for stable Li metal batteries.

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Section: Resultsmentioning

confidence: 99%

Artificial Solid Electrolyte Interphase Engineering toward Dendrite-Free Lithium Anodes

Ding

Xin

Wang

et al. 2023

ACS Sustainable Chem. Eng.

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“…Time-of-flight secondary ion mass spectrometry (TOF-SIMS) is a highly sensitive analytical technique for investigating composition distribution by combining secondary-ion mass spectrometry and ion beam sputtering [44] , [45] , [46] , [47] . Although TOF-SIMS has the potential to provide a precise characterization of the vertical composition distribution in PeLEDs, the organic species in perovskite films inevitably decompose into fragments when interacting with high-energy sputtering ions, such as Ar + and Cs + , thus weakening their ability to analyze the analysis ability toward ligands [45] .…”

Section: Introductionmentioning

confidence: 99%

Revealing the vertical structure of in-situ fabricated perovskite nanocrystals films toward efficient pure red light-emitting diodes

Sun

Song

et al. 2024

Fundamental Research

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“…Irregular distribution of In-based nanoclusters has been detected at the GaN/InN and InGaN/AlGaN interfaces with an estimated diameter of ~1-2 nm. To probe the optical, structural, and electrical attributes of compound semiconductors, it has been a customary tradition to instigate a variety of characterization techniques, including reflectivity, absorption [24][25][26][27], high-resolution X-ray diffraction (HR-XRD) [28][29][30][31][32][33][34], extended X-ray absorption fine structures (EXAFs) [35][36][37][38][39][40], photoluminescence (PL) [41][42][43], secondary ion mass spectroscopy [20][21][22][23][24][25][26][27][28] (SIMS), spectroscopic ellipsometry (SE) [28], electron-energy loss (EEL) [43,44] measurements, etc. Other experimental methods such as electron paramagnetic resonance (EPR) and far-infrared (FIR) spectroscopy [21][22][23] are also considered valuable for probing the nature of electronic centers, as well as assessing nanostructured interfacial components by evaluating their vibrational and/or electronic properties .…”

Section: Introductionmentioning

confidence: 99%

Evaluating Phonon Characteristics by Varying the Layer and Interfacial Thickness in Novel Carbon-Based Strained-Layer Superlattices

Talwar,

Becla

2023

Solids

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Systematic results of lattice dynamical calculations are reported as a function of m and n for the novel (SiC)m/(GeC)n superlattices (SLs) by exploiting a modified linear-chain model and a realistic rigid-ion model (RIM). A bond polarizability method is employed to simulate the Raman intensity profiles (RIPs) for both the ideal and graded (SiC)10-Δ/(Si0.5Ge0.5C)Δ/(GeC)10-Δ/(Si0.5Ge0.5C)Δ SLs. We have adopted a virtual-crystal approximation for describing the interfacial layer thickness, Δ (≡0, 1, 2, and 3 monolayers (MLs)) by selecting equal proportions of SiC and GeC layers. Systematic variation of Δ has initiated considerable upward (downward) shifts of GeC-(SiC)-like Raman peaks in the optical phonon frequency regions. Our simulated results of RIPs in SiC/GeC SLs are agreed reasonably well with the recent analyses of Raman scattering data on graded short-period GaN/AlN SLs. Maximum changes in the calculated optical phonons (up to ±~47 cm−1) with Δ = 3, are proven effective for causing accidental degeneracies and instigating localization of atomic displacements at the transition regions of the SLs. Strong Δ-dependent enhancement of Raman intensity features in SiC/GeC are considered valuable for validating the interfacial constituents in other technologically important heterostructures. By incorporating RIM, we have also studied the phonon dispersions [ωjSLq→] of (SiC)m/(GeC)n SLs along the growth [001] as well as in-plane [100], [110] directions [i.e., perpendicular to the growth]. In the acoustic mode regions, our results of ωjSLq→ have confirmed the formation of mini-gaps at the zone center and zone edges while providing strong evidences of the anti-crossing and phonon confinements. Besides examining the angular dependence of zone-center optical modes, the results of phonon folding, confinement, and anisotropic behavior in (SiC)m/(GeC)n are compared and contrasted very well with the recent first-principles calculations of (GaN)m/(AlN)n strained layer SLs.

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Probing Surface Information of Alloy by Time of Flight-Secondary Ion Mass Spectrometer

Cited by 9 publications

References 32 publications

Artificial Solid Electrolyte Interphase Engineering toward Dendrite-Free Lithium Anodes

Artificial Solid Electrolyte Interphase Engineering toward Dendrite-Free Lithium Anodes

Revealing the vertical structure of in-situ fabricated perovskite nanocrystals films toward efficient pure red light-emitting diodes

Evaluating Phonon Characteristics by Varying the Layer and Interfacial Thickness in Novel Carbon-Based Strained-Layer Superlattices

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