Research

(NANOSCIENCE AND NANOTECHNOLOGY):

I. Nanoparticle Synthesis:

– 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).

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– Using new techniques to control nanocrystal growth based on stirring rate, temperature, capping agents, and reducing agents to prepare anisotropic nanoparticle shapes.

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 II. Nanoparticle Assembly:

– Fabrications of 2D arrays from the colloidally prepared nanoparticles with different structures on different substrates.

Abstract ImageGraphical abstract: Controlling the orientations of gold nanorods inside highly packed 2D arrays

– Fabrication of monolayer assembled hybrid organic polymer-inorganic nanoparticles.

 

III. Colloidal Catalysis and photocatalysis: 

– Catalysis using nano-reactors (hollow nanoparticles of a single shell, double shell, and rattle structures).

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– Catalysis on active nanocatalysts with sharp corners and edges.

-Photocatalysis by plasmonic and semiconductor nanocatalysts and hybrid metallic-semiconductor nanoparticles.

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-Electrocatalysis by single metallic and multiple metallic nanoparticles of different structures.

– Mechanistic studies of colloidal nanocatalysis (homogenous or heterogeneous).

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IV. Energy:

– Studying the optical and optoelectrical properties of a monolayer assembly of hybrid p-conjugated polymers-inorganic plasmonic nanoparticles (improving the efficiency of organic solar cells using plasmonic nanoparticles)

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V. Plasmonic Nanosensing:

– Sensing of biological systems and hazardous materials by plasmonic nanoparticles chips.

– Optomechanical and optoelectrical switching by plasmonic nanoparticles.

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– Simulation of the surface plasmon resonance spectrum and the plasmon field of plasmonic nanoparticles.

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VI. Spectroscopy and photophysics of nanomaterials:

– Real-time surface-enhanced Raman spectroscopy (SERS).

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– Attenuated total reflection IR spectroscopy.

– Time-resolved infrared (rapid and step scan) and fluorescence spectroscopy.

– Femtosecond pump-probe transient absorption spectroscopy.

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