(NANOSCIENCE AND NANOTECHNOLOGY):
I. Semiconducting Two-Dimensional Materials:
- Tuning the band gap of semiconducting 2-D material by various techniques: electron doping, photothermal heating, polymer assembly on the sheet surface.
- Studying the optical properties using ultra-high-resolution imaging and spectroscopic techniques.
- Developing new techniques to produce semiconducting 2-D materials.
II. Catalysis and electrocatalysis:
- Catalysis using nano-reactors (hollow nanoparticles of single shell, double shell, and rattle structures).
- Catalysis on active nanocatalysts with sharp corners and edges.
- Photocatalysis by semiconductor nanocatalysts and hybrid metallic-semiconductor nanoparticles.
- Electrocatalysis by single metallic and multiple metallic nanoparticles of different structures.
- Mechanistic studies of colloidal nanocatalysis (homogenous or heterogeneous).
III. Spectroscopy and photo-physics of nanomaterials:
- Real-time surface-enhanced Raman spectroscopy (SERS).
- Attenuated total reflection IR spectroscopy.
- Time-resolved infrared (rapid and step scan) and fluorescence spectroscopy.
- Femtosecond pump-probe transient absorption spectroscopy.
IV. Assembly of nanomaterials:
- Fabrications of 2D arrays from the colloidally prepared nanoparticles with different structures on different substrates.
- Monolayer assembly of hybrid organic polymer-inorganic nanoparticles.
- Studying the optical and optoelectrical properties of a monolayer assembly of hybrid conjugated polymers-inorganic plasmonic nanoparticles (improving the efficiency of organic solar cells using plasmonic nanoparticles).
- Study the excitionic interaction in semiconducting 2D materials integrated with conjugated polymer used in organic solar cell.
VI. Synthesis of Nanoparticles:
- Size- and shape-controlled synthesis of nanoparticles of different compositions (single and multiple metals, semiconductors, and hybrid metallic-semiconductor) and structures (solid, hollow, and rattle).
- Using new techniques to control nanocrystal growth based on stirring rate, temperature, capping agents, and reducing agents to prepare anisotropic nanoparticle shapes.
VII. Plasmonic Nanosensing:
- Sensing of biological systems and hazardous materials by plasmonic nanoparticles chips.
- Optomechanical and optoelectrical switching by plasmonic nanoparticles.
- Simulation of the surface plasmon resonance spectrum and the plasmon field of plasmonic nanoparticles.