A5053459380- Advanced Sensor and Energy Harvesting Materials
- Nonlinear Optical Materials Studies
- Conducting polymers and applications
- Polydiacetylene-based materials and applications
- Quantum Dots Synthesis And Properties
- Transition Metal Oxide Nanomaterials
- Spectroscopy Techniques in Biomedical and Chemical Research
- Chalcogenide Semiconductor Thin Films
- Gold and Silver Nanoparticles Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Photonic and Optical Devices
- TiO2 Photocatalysis and Solar Cells
- Thermal properties of materials
- Laser-Ablation Synthesis of Nanoparticles
- Nonlinear Optical Materials Research
- 2D Materials and Applications
- Mechanical and Optical Resonators
- Green IT and Sustainability
- Diamond and Carbon-based Materials Research
- Analytical Chemistry and Sensors
- Advanced Fiber Laser Technologies
- Graphene research and applications
- Advanced Thermoelectric Materials and Devices
- High voltage insulation and dielectric phenomena
- Surface Roughness and Optical Measurements
University of Toledo
2022-2023
University of Houston
2014-2021
Manufacturing Institute
2020-2021
Layered two-dimensional (2D) semiconductors, such as MoS2 and SnS2, have been receiving intensive attention due to their technological importance for the next-generation electronic/photonic applications. We report a novel approach controlled synthesis of thin crystal arrays SnS2 at predefined locations on chip by chemical vapor deposition with seed engineering demonstrated application fast photodetectors photocurrent response time ∼5 μs. This opens pathway large-scale production layered 2D...
Elementary tellurium is currently of great interest as an element with potential promise in nano-technology applications because the recent discovery regarding its three two-dimensional phases and existence Weyl nodes around Femi level. Here, we report on unique nano-photonic properties elemental particles [Te(0)], harvest from a culture tellurium-oxyanion respiring bacteria. The bacterially-formed nano-crystals prove effective photonic tested compared to chemically-formed nano-materials,...
In this study, the process for tuning electrical properties of graphene/polyvinylidene fluoride (Gr/PVDF) nanocomposite films by a thermal annealing is explored. The surface morphology and microstructure were characterized. effect temperature on conductivity was investigated heating cooling sample from room up to 150 °C. recorded as function temperature. A Hall measurement conducted temperatures obtain voltage (VH), carrier mobility (μH), concentration (nH), coefficient (RH), resistivity,...
In recent years, flexible and stretchable sensors have been a subject of intensive research to replace the traditional made up rigid metals semiconductors. this paper, piezoresistive airflow sensor was designed tested measure speed air inside pipe. Graphene/polyvinylidene fluoride nanocomposite films were prepared using solvent-cast technique on polyethylene substrate as material. Three different solutions studied function graphene concentration. The microstructure characterized by X-ray...
Nanocarbon-based disordered, conductive, polymeric nanocomposite materials (DCPNs) are increasingly being adopted in applications across the breadth of science. DCPNs characteristically exhibit poor electroconductive properties and irreproducibility/irreversibility electronic phenomena, due largely to percolative disordered nature intrinsic such systems. The authors herein present an alternative approach toward enhancing thermoresponsivity, repeatability, reversibility nanocarbon-based...
A flexible piezoresistive sensor was developed as an accelerometer based on Graphene/PVDF nanocomposite to detect low-frequency and low amplitude vibration of industrial machines, which may be caused due misalignment, looseness fasteners, or eccentric rotation. The structured a cantilever beam with the proof mass at free end. accelerate up down, converted into electrical signal. output recorded change in resistance (response percentage) respect acceleration. It found that this has capability...
The present work serves as a scalable basis upon which to expand the usage of MWCNT/polymeric nanocomposites into high-conductivity applications.
Abstract Nanocomposite materials are assuming increasingly important roles across contemporary science. Analytical characterizations and visualizations of nanoscale interphases/interfaces critical to development novel multiphase nanostructures systems. While conventional vibrational spectroscopies indispensable physicochemical characterization tools, standard techniques such as Fourier‐transform quantum cascade laser infrared (IR) microspectroscopies intrinsically limited in spatial...
Conventional Fourier-transform infrared (FTIR) and quantum cascade laser IR microspectroscopies are limited in spatial resolution by the diffraction limit of light. The optical-photothermal (O-PTIR) technique with simultaneous Raman microspectroscopy (O-PTIR+R) described this work affords wavelength independent position-specific spectra submicron resolution, demonstrating unprecedented nanocarbon-based polymer nanocomposite interphases chemical exactitude. More details can be found article...