Colloidal CdSe quantum nanowires: Synthesis, photo-induced photoluminescence enhancement and fabrication of core/shell, water-dispersible structures

Solution-liquid-solid: SLS) mechanism is applied to the growth of colloidal CdSe quantum wires. The synthetic conditions are optimized to control the morphology and optical properties of the quantum wires. The effects of the impurities of solvent TOPO during the synthesis were also explored. Photo-induced photoluminescence enhancement phenomenon is observed and studied for the CdSe nanowires. The quantum yield of the ensemble CdSe quantum wires can reach up to 10% after photo-enhanced. Type-I CdSe/CdS core/shell structures were synthesized to improve the emission efficiency of the nanowires. Polymer or silica coated CdSe nanostructures were also synthesized to achieve the water-dispersibility.

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemistry

Year dc:date.available

2009

Author dc:creator

• Tang, Rui

Contributors dc:contributor

• William Buhro

• Chemistry
• Inorganic
• Physical
• CdSe
• core/shell
• photoluminescence
• quantum confinement
• SLS
• water-dispersible

Language dc:language

English (en)

DOI

https://doi.org/10.7936/K75H7D9M

OAI identifier oai:identifier

oai:openscholarship.wustl.edu:etd-1339