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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Mitacs Globalink Award
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A Tale of Seemingly “Identical” Silicon Quantum Dot Families: Structural Insight into Silicon Quantum Dot Photoluminescence
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
High-Capacitance Pseudocapacitors from Li+ Ion Intercalation in Nonporous, Electrically Conductive 2D Coordination Polymers
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
Liquid Crystalline Lithium-Ion Electrolytes Derived from Biodegradable Cyclodextrin
Peer-Reviewed Journal Article
Mesoporous GeOx/Ge/C as a Highly Reversible Anode Material with High Specific Capacity for Lithium-Ion Batteries
Peer-Reviewed Journal Article
Mixing, Domains, and Fast Li-Ion Dynamics in Ternary Li\textendash Sb\textendashBi Battery Anode Alloys
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
Reverse Transcription Lesion-Induced DNA Amplification: An Instrument-Free Isothermal Method to Detect RNA
Peer-Reviewed Journal Article
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?
Peer-Reviewed Journal Article
Silicon Quantum Dot–Polymer Fabry–Pérot Resonators with Narrowed and Tunable Emissions
Peer-Reviewed Journal Article
Size and Surface Edicts of Silicon Nanocrystals in Graphene Aerogel Composite Anodes for Lithium Ion Batteries
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
Tailoring B-doped silicon nanocrystal surface chemistry via phosphorus pentachloride – mediated surface alkoxylation
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
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
Peer-Reviewed Journal Article
“Turning the dials”: controlling synthesis, structure, composition, and surface chemistry to tailor silicon nanoparticle properties
Peer-Reviewed Journal Article