A5040646763- Advanced Photocatalysis Techniques
- Electronic and Structural Properties of Oxides
- Gas Sensing Nanomaterials and Sensors
- Advanced Cellulose Research Studies
- Quantum and electron transport phenomena
- Strong Light-Matter Interactions
- Perovskite Materials and Applications
- Ga2O3 and related materials
- Polydiacetylene-based materials and applications
- Nonmelanoma Skin Cancer Studies
- Diamond and Carbon-based Materials Research
- Advanced biosensing and bioanalysis techniques
- Magnetic and transport properties of perovskites and related materials
- Covalent Organic Framework Applications
- Advanced Data Storage Technologies
- Neural Networks and Reservoir Computing
- Luminescence Properties of Advanced Materials
- Effects of Radiation Exposure
- Advanced Nanomaterials in Catalysis
- Catalytic Processes in Materials Science
- Copper-based nanomaterials and applications
- 2D Materials and Applications
- Semiconductor materials and devices
- Advanced Sensor and Energy Harvesting Materials
- Nanoporous metals and alloys
University of Alberta
2021-2025
Creative Commons
2022
Jacksonville College
2022
Mayo Clinic in Florida
2022
WinnMed
2022
We present a potential solution to the problem of extraction photogenerated holes from CdS nanocrystals and nanowires. The nanosheet form C3N5 is low-band-gap (Eg = 2.03 eV), azo-linked graphenic carbon nitride framework formed by polymerization melem hydrazine (MHP). nanosheets were either wrapped around nanorods (NRs) following synthesis pristine chalcogenide or intercalated among them an in situ protocol two kinds heterostructures, CdS-MHP CdS-MHPINS, respectively. improved photocatalytic...
Layered materials such as bismuth oxyhalides (especially BiOBr and BiOI) are the focus of research attention photocatalysts due to their visible light activity, unique electronic structure, excellent chemical physical stability, internal electric field effect. We report solvothermal synthesis BiOX solid solutions with continuously tunable optical absorption photoluminescence spectra. employed solid-state nuclear magnetic resonance (SSNMR) characterization probe local environment around Bi...
We report a unique photoanode architecture involving TiO2, g-C3N4, and AuNPs wherein synergistic enhancement of the photoelectrochemical (PEC) performance was obtained with photocurrent densities as high 3 mA cm-2 under AM1.5G 1 sun illumination. The PEC highly stable reproducible, photoresponse down to photon energy 2.4 eV, close interband damping threshold Au. maximized when Au plasmon band strongly overlapped g-C3N4 emission band. Our architecture, which involved buried TiO2...
Bulk Au is chemically inert and a relatively poor catalyst while Pt catalytically active. Nanostructured an effective photocatalyst due to hot electrons generated by interband- intraband damping of surface plasmons. A bimetallic, mesoporous AuPt with large specific area highly desirable the combination carrier catalytic promoter effects together number active reaction sites. Sponge-shaped alloy nanoparticles were grown spontaneous thermal dewetting ultrathin AuPtAg films followed dealloying...
We describe an in situ-polymerized conformal thin layer coating of narrow band gap carbon-rich carbon nitride (NBG-CRCN) on titania nanorod arrays to design a binary semiconductor heterojunction photocatalyst. The situ polymerization creates strong interaction between the TiO2 substrate and film, which prevents leaching CRCN liquid electrolytes. A unique aspect our work is developing easy inexpensive technique for heteroepitaxial growth mechanically photochemically stable films with intimate...
The fluorescence quenching of carboxyl-rich g-C
Blended films comprising poly(butyl acrylate) (PBA)-grafted cellulose nanocrystals (CNCs) and poly(3-hexylthiophene) (P3HT), exhibited more intense photoluminescence (PL) longer PL emission lifetimes compared to pristine P3HT films. Optical absorption spectra indicated reduced torsional disorder i.e. enhanced backbone planarity in the P3HT@CNC blended composites bare P3HT. Such molecule-level geometrical modification resulted both smaller interchain higher intrachain exciton bandwidth P3HT,...
Octacarboxylated cobalt phthalocyanine (CoPc) was covalently conjugated to cellulose nanocrystals (CNCs) by employing an esterification protocol. Solid-state NMR, X-ray photoelectron spectroscopy (XPS), Raman, and infrared spectra were used verify study the nature of covalent attachment responsible for immobilization CoPc on CNC surface. The investigated from a theoretical simulation perspective using dispersion-corrected density functional theory (DFT) calculations, which verified stable...
Seeking tenable and sustainable alternatives for clean energy harvesting, artificial photosynthesis has emerged as a realm of research. We have investigated the effects Cu doping at Ca Nb sites in Ba3CaNb2O9 (BCN) on magneto-optoelectronic properties through Density Functional Theory studies, employing HSE06 hybrid functional to guide rational syntheses. Our calculations show that while replacement atom requires lower formation than replacing an atom, oxygen vacancies (OV) gradually reduce...
Abstract A key challenge in the field of plexcitonic quantum devices is fabrication solid-state, device-friendly nanostructures using inexpensive and scalable techniques. Lithography-free, bottom-up nanofabrication methods have remained relatively unexplored within context coupling. In this work, a system consisting thermally dewetted plasmonic gold nanoislands (AuNI) coated with thin film J-aggregates was investigated. Control over nanoisland size morphology allowed for range plasmon...
TiO2 nanotube arrays grown through electrochemical anodization in a formamide-based electrolyte (TNTA-FA) exhibited whole host of unusual properties compared to nanotubes the conventional ethylene glycol-based (TNTA-EG). TNTA-FA shorter phonon lifetimes, lower lattice strain, more visible light absorption, work function, and highly adsorbate structure consisting physisorbed chemisorbed CO along with linearly adsorbed CO2 various monodentate bidentate carbonate species. The observation dark...
The coupling between plasmons and excitons gives rise to a hybrid quasiparticle known as plexciton. Plexcitons have vast sensing applications in photodetection, refractive index sensing, gas probing hot carriers, creation detection of entangled states, etc. Plexcitonic can exist the weak coupling, intermediate strong regimes. Of these regimes, strongly coupled plexcitonic states are hardest create observe, yet most desirable for high fidelity applications. Herein, we report observation Rabi...
PURPOSE: Radiation dermatitis (RD) affects up to 85% of patients after radiotherapy for central nervous system or skin neoplasms.1 RD is characterized by erythema, desquamation, necrosis, fibrosis, ulcers, and bleeding.2 The chronicity the lesions, particularly negatively impacts patient's quality life requires complex surgical management.3,4 Existing models do not assess scalp RD.5 We aimed characterize a reproducible model in mice. METHOD: Twenty C57BL/6 mice received an x-ray dose 60 Gy...