Film Formation of Cadmium Selenide Quantum Dots (CdSe QD) by Dip-Coating
Crystal growth on homogenous surface of semiconductor nanocrystal synthesized in microemulsion
- 73 pages
- English
- PDF
- Available on iOS & Android
Film Formation of Cadmium Selenide Quantum Dots (CdSe QD) by Dip-Coating
Crystal growth on homogenous surface of semiconductor nanocrystal synthesized in microemulsion
About this book
Master's Thesis from the year 2013 in the subject Chemistry - Materials Chemistry, grade: A, Università degli Studi di Perugia (Department of Chemistry), course: Molecular & Industrial Biotechnology, language: English, abstract: In this work is presented the investigation on the morphology cadmium selenide quantum dots (CdSe QD) crystals, growth on glass substrates by dip coating. Two different samples have used for the film formation: one with CdSe QD and the second one with CdSe QD covered with the tripeptide L-glutathione. Both samples were synthesized using the technique of water-in-oil microemulsion, and the Dioctyl sulfosuccinate sodium salt (AOT) was used as the surfactant. The film obtained by the first sample (CdSe QD without stabilizing agent) shows the better properties: the pattern of the film is more regular and the striations are well defined with a square shape; moreover it exhibits a powerful fluorescence emission.Furthermore, the dip-coating was carried out at different speed to verify if the film formation follows the theoretical prediction. The height of each film obtained at a different rate (using the first sample) was measured, and the results were compared with the theory using the Landau-Levich equation. It was verified a full correspondence between the experimental data and theoretical model.
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