Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The aim of this study was the preparation of different amorphous silicon-carbon hybrid thin-layer materials according to the liquid phase deposition (LPD) process using single-source precursors. In our study, 2-methyl-2-silyltrisilane (methylisotetrasilane; ), 1,1,1-trimethyl-2,2-disilyltrisilane (trimethylsilylisotetrasilane; ), 2-phenyl-2-silyltrisilane (phenylisotetrasilane; ), and 1,1,2,2,4,4,5,5-octamethyl-3,3,6,6-tetrasilylcyclohexasilane (cyclohexasilane; ) were utilized as precursor materials and compared with the parent compound 2,2-disilyltrisilane (neopentasilane; ). Compounds - were successfully oligomerized at λ = 365 nm with catalytic amounts of the neopentasilane oligomer (). These oligomeric mixtures ( and -) were used for the preparation of thin-layer materials. Optimum solution and spin coating conditions were investigated, and amorphous silicon-carbon films were obtained. All thin-layer materials were characterized via UV/vis spectroscopy, light microscopy, spectroscopic ellipsometry, XPS, SEM, and SEM/EDX. Our results show that the carbon content and especially the bandgap can be easily tuned using these single-source precursors via LPD.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10523434 | PMC |
| http://dx.doi.org/10.1021/acs.inorgchem.3c01846 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reduction in Carbon Disorder during Electrochemical Cycling of Silicon-Carbon Composite Electrodes.
ACS Appl Mater Interfaces
August 2025
Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States.
In lithium-ion batteries (LIBs) with silicon (Si) electrodes, Si's enormous volume change (>300%) causes pulverization and rapid capacity deterioration. Strategies such as embedding Si into carbon matrices with optimized porosity and conductivity have been explored to improve capacity retention and cycling stability. Here, we report a viable two-step emulsion polymerization and carbonization technique to transform biomass into a porous amorphous carbon cloud with commercial Si nanoparticles embedded within it, referred to as Si@CC.
View Article and Find Full Text PDFUnveiling the prospects of hydrogen bond networks and multiple chemical bonds in biomass-derived Ni-doped hydrochar for high-performance integrated silicon anodes.
J Colloid Interface Sci
December 2025
MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, the Key Lab of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
Considering the large-scale production of lithium-ion battery anode materials, the advantages of silicon-based anodes would be overshadowed if both performance and cost were not properly optimized. However, current preparation methods for silicon‑carbon anodes face challenges such as low efficiency and high energy consumption, limiting the sustainable commercialization. This work proposes a novel, cost-effective method for fabricating silicon‑carbon anodes by utilizing a hydrogen bond network in combination with multiple chemical bonds.
View Article and Find Full Text PDFSolid-state amorphization to alleviate severe volume expansion in silicon-based anodes.
J Colloid Interface Sci
December 2025
State Key Laboratory of Chemical Resources Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, PR China. Electronic address:
The anisotropic lithiation-induced expansion of crystalline silicon leads to uneven volume expansion and extreme stress concentration. This issue will be effectively mitigated by employing an isotropic amorphous structure. Here, an isotropic porous amorphous silicon (aSi) was prepared using a simple and safe method, followed by mechanical mixing with graphite to form an aSi/graphite composite (aSG60).
View Article and Find Full Text PDFSilicon Deposition on Three-Dimensional Graphene Powder in an Aqueous Environment for Fast-Charging and Ultra-Long Cycle Life Anode in Lithium-Ion Batteries.
Small
August 2025
Shenzhen Engineering Lab for Supercapacitor Materials, Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems, School of Material Science and Engineering, Harbin Institute of Technology, Shenzhen, University Town, Shenzhen, 518055, China.
Porous silicon-carbon composites formed by depositing silicon on carbon effectively mitigate silicon lithiation induced expansion and hold great potential as next-generation anodes of lithium-ion batteries (LIBs). However, limited lithium-ion diffusion in CVD-derived crystalline silicon and the amorphous carbon matrix restricts their fast-charging performance. Here, a safe, scalable approach using hydroxylated three-dimensional vertical graphene (3D-VG) is proposed to "capture" silicon from the hydrolysis-reduction products of 3-aminopropyltrimethoxysilane, enabling amorphous silicon deposition in aqueous conditions.
View Article and Find Full Text PDFThree-Dimensional Carbon Nanotubes Buffering Interfacial Stress of the Silicon/Carbon Anodes for Long-Cycle Lithium Storage.
ACS Appl Mater Interfaces
October 2024
Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, PR China.
Silicon/graphite composites show a high specific capacity and improved cycling stability. However, the intrinsic difference between silicon and graphite, such as unequal volume expansion and lithium-ion diffusion kinetics, causes persistent stress at the silicon/graphite interface and the expansion of the electrical isolation region. Herein, carbon nanotubes (CNTs) were successfully introduced into silicon/carbon composites via ball milling and spray drying, which effectively relieved the stress concentration at the direct contact interface and formed a three-dimensional conductive structure.
View Article and Find Full Text PDF