Researchers involved in Project T06-Z01 are pursuing advanced battery materials on numerous fronts. Silicon and germanium are recognized as being among the most promising anode materials for Li-ion batteries because of their high theoretical specific capacity (as high as ~4200 mAh/g) but challenges remain including: low electrical conductivity, large volume changes during lithiation/delithiation. Important lingering questions include: what roles do well-defined size, surface chemistry, morphology (e.g., nanoparticles and nanosheets), and host matrix (e.g., silicon nanosheet or graphene aerogels, Li+ transporting conductive polymers, etc.) play in device performance? Our team is evaluating these parameters, as well as designing new hybrids that, among other things, could offer “self-healing” based upon directed, reversible self-assembly.
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A Tale of Seemingly “Identical” Silicon Quantum Dot Families: Structural Insight into Silicon Quantum Dot Photoluminescence
Scholarly Refereed Journal
Exploring Structural Nuances in Germanium Halide Perovskites Using Solid-State $\less$sup$\greater$73$\less$/sup$\greater$Ge and $\less$sup$\greater$133$\less$/sup$\greater$Cs NMR Spectroscopy
Scholarly Refereed Journal
High-Capacitance Pseudocapacitors from Li+ Ion Intercalation in Nonporous, Electrically Conductive 2D Coordination Polymers
Scholarly Refereed Journal
Hybrid Nanomaterials for Photocatalytic Conversion of CO2
Conference/Symposium/Workshop Contribution
Hydride Terminated SiNP:Cutting through the Layers Using 29Si MAS and DNP NMR Spectroscopy
Conference/Symposium/Workshop Contribution
Insights into the Structure of Silicon Nanocrystals
Conference/Symposium/Workshop Contribution
Intense terahertz pulses inhibit ras signaling and other cancer-associated signaling pathways in human skin tissue models
Scholarly Refereed Journal
Liquid Crystalline Lithium-Ion Electrolytes Derived from Biodegradable Cyclodextrin
Scholarly Refereed Journal
Mesoporous GeOx/Ge/C as a Highly Reversible Anode Material with High Specific Capacity for Lithium-Ion Batteries
Scholarly Refereed Journal
Mixing, Domains, and Fast Li-Ion Dynamics in Ternary Li\textendash Sb\textendashBi Battery Anode Alloys
Scholarly Refereed Journal
N-Heterocyclic carbene stabilization of germanium dihydrides for materials applications
Conference/Symposium/Workshop Contribution
N-heterocyclic carbene-stabilized GeH2 moieties and their applications to material syntheses
Conference/Symposium/Workshop Contribution
Photocatalytic mechanism control and study of carrier dynamics in CdS@C3N5 core-shell nanowires
Scholarly Refereed Journal
Reverse Transcription Lesion-Induced DNA Amplification: An Instrument-Free Isothermal Method to Detect RNA
Scholarly Refereed Journal
Shining in a New Size Regime: Silicon Nanoparticle Assemblies
Conference/Symposium/Workshop Contribution
Silicon Nanocrystals: From Solution to Solid State
Doctoral Thesis/Dissertation
Silicon Nanoparticles from the Inside Out: Exploring the Internal Structure of Silicon Nanoparticles and Its Impact on Their Photoluminescence
Doctoral Thesis/Dissertation
Silicon Nanoparticles: Are they Crystalline from the Core to the Surface?
Scholarly Refereed Journal
Silicon Quantum Dot–Polymer Fabry–Pérot Resonators with Narrowed and Tunable Emissions
Scholarly Refereed Journal
Size and Surface Edicts of Silicon Nanocrystals in Graphene Aerogel Composite Anodes for Lithium Ion Batteries
Scholarly Refereed Journal
Surface Functionalization of Germanium Nanosheets
Conference/Symposium/Workshop Contribution
Surface Functionalization of Germanium Nanosheets
Conference/Symposium/Workshop Contribution
Surface Functionalization of Germanium Nanosheets
Conference/Symposium/Workshop Contribution
Surface-Anisotropic Janus Silicon Quantum Dots via Masking on 2D Silicon Nanosheets
Scholarly Refereed Journal
Synthesis and Functionalization of 1D, 2D Germanium-based Nanostructures
Doctoral Thesis/Dissertation
Synthesis of Self-Healing and Self-Replicating Nanomaterials Based on DNA and Nanoparticles
Conference/Symposium/Workshop Contribution
Synthesis, Properties, and Derivatization of Poly(dihydrogermane): A Germanium-Based Polyethylene Analogue
Scholarly Refereed Journal
Tailoring B-doped silicon nanocrystal surface chemistry via phosphorus pentachloride – mediated surface alkoxylation
Scholarly Refereed Journal
Tailoring Material Properties of Silicon Nanocrystals via Doping
Conference/Symposium/Workshop Contribution
Thermally Induced Dehydrogenative Coupling of Organosilanes and H-Terminated Silicon Quantum Dots onto Germanane Surfaces
Scholarly Refereed Journal
Time-Resolved Terahertz Spectroscopy of Nanomaterials
Conference/Symposium/Workshop Contribution
Transtion-metal doping SiNPs
Conference/Symposium/Workshop Contribution
Ultrafast Carrier Dynamics of CdS Nanowires Wrapped In C3N5 Nanosheets
Conference/Symposium/Workshop Contribution
Ultrafast photoconductivity and terahertz vibrational dynamics in double helix SnIP nanowires
Scholarly Refereed Journal
Understanding the Anatomy of a Silicon Nanocrystal
Conference/Symposium/Workshop Contribution
Understanding the Anatomy of a Silicon Nanocrystal
Conference/Symposium/Workshop Contribution
Water-Assisted Transfer Patterning of Nanomaterials
Scholarly Refereed Journal
“Turning the dials”: controlling synthesis, structure, composition, and surface chemistry to tailor silicon nanoparticle properties
Scholarly Refereed Journal