Publications de Awos Al Salman

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We report on photoluminescence decay measurements of CdSe nanoparticles over several decades of intensities and times, and as a function of size and temp. A model is proposed for the multi-exponential decay kinetics, and their temp. dependence, in which a ...

This thesis presents an experimental study of the energy and time-resolved optical response of chemically prepared CdSe nanoparticles with different sizes, shapes (dots, rods, and tetrapods), and lattice structures (wurtzite and zinc blende). The first par ...

Highly homogeneous and luminescent CdSe colloidal nanocrystals in the less common zinc blende crystal structure have been obtained at high temperature in a noncoordinating organic solvent. The key parameter appears to be the addition of a phosphonic acid t ...

The temp. dependence of the absorption and fluorescence spectra of colloidal CdSe nanocrystals was compared for three different shapes (dots, rods, and tetrapods) at 4-300 K. While the shift of the fluorescence max. indicates little dependence on the shape ...

We present ultrafast pump-probe studies on chem. prepd. CdSe nanocrystals. Upon pulsed optical excitation we find pronounced oscillations, indicating strong coupling to a LO phonon mode. From the polarization dependence of the signal addnl. information abo ...

We present three different prepn. methods for CdSe colloidal nanoparticles that, when carried out into the Ostwald ripening regime, lead to the development of complex spectral patterns resulting from the overlap of several distinct components corresponding ...

Awos Al Salman

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A model for the multi-exponential excited-state decay of CdSe nanocrystals

Spectroscopy and kinetic studies of electron-hole recombination in CdSe nanoparticles : effect of size, shape, and lattice structure

Synthesis of high quality zinc blende CdSe nanocrystals

Temperature effects on the spectral properties of colloidal CdSe nanodots, nanorods, and tetrapods

Femtosecond polarization relaxation in CdSe nanocrystals

Multimodal Distribution of Quantum Confinement in Ripened CdSe Nanocrystals

Chemical synthesis and optical properties of size-selected CdSe tetrapod-shaped nanocrystals