Physical and Chemical Analyses on Single-Source Precursor-Grown CdS Semiconductor Nanomaterials
| Autor: | J.P. Laurenti, Stéphane Dalmasso, Didier Arl, Jean-Jacques Gaumet, Mathieu Frégnaux |
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| Rok vydání: | 2010 |
| Předmět: |
Diffraction
Materials science business.industry Physics::Optics Nanoparticle Nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nanomaterials Condensed Matter::Materials Science General Energy Semiconductor Transmission electron microscopy Quantum dot Dispersion (optics) Optoelectronics Physical and Theoretical Chemistry business Visible spectrum |
| Zdroj: | The Journal of Physical Chemistry C. 114:17318-17323 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp104233x |
| Popis: | CdS quantum dots (QDs) are synthesized by the single-source precursor thermal method. Use of a temperature ramp allows faster elaboration of high-quality smaller nanoparticles in size. A cross-disciplinary study between chemical analyses and physical techniques provides consistent data for these small size QDs. Joint X-ray diffraction, mass spectrometry, transmission electron microscopy, and optical spectrometry techniques give a consistent picture about the crystalline structure, average size, and size dispersion of the QDs as well as their optical spectral response in correlation with their size via quantum confinement effects. These QDs have great potential as light-emitting devices because of their tunable response wavelength in the near UV and blue part of the visible spectrum range. |
| Databáze: | OpenAIRE |
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