Chemical bath deposition of CdSe and CdS nanocrystalline films: tailoring of morphology, optical properties and carrier dynamics
| Autor: | P. Formánek, Yvonne Němcová, Ivan Němec, Petr Němec, František Trojánek, Petr Malý, D. Sprinzl, M. Šimurda |
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| Rok vydání: | 2008 |
| Předmět: |
Photoluminescence
Nanostructure Band gap Physics::Optics Nanotechnology Surfaces and Interfaces Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Nanocrystalline material Cadmium sulfide Surfaces Coatings and Films Electronic Optical and Magnetic Materials Condensed Matter::Materials Science chemistry.chemical_compound chemistry Nanocrystal Quantum dot Materials Chemistry Electrical and Electronic Engineering Chemical bath deposition |
| Zdroj: | physica status solidi (a). 205:2324-2329 |
| ISSN: | 1862-6319 1862-6300 |
| DOI: | 10.1002/pssa.200779414 |
| Popis: | We review the results of our research towards tailoring morphology and optical properties of films consisting of closely-spaced nanocrystals of CdSe and CdS whose optical band-gap can be tuned to cover the whole visible spectral range. On basis of the obtained results, in particular of photoexcited carrier dynamics, we have proposed a microscopic model that describes well the optical properties of the films. We have also showed that the spin relaxation of electrons in these nanocrystalline films is different than that in mutually isolated nanocrystals of the same size. |
| Databáze: | OpenAIRE |
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