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1. Colloidal nanomaterials
Until the 1960s, low-dimensional objects remained the preserve of theorists. In the 1970s, with advances in fabrication methods and in particular molecular jet epitaxy, it became possible to design samples whose size is smaller than the Bohr radius of the material of which they are made. While silicon is the king of electronics, its indirect gap makes it a poor candidate for optical applications. In contrast, III-V semiconductors, and GaAs in particular, feature a band structure with a direct band gap (i.e. the conduction band maximum is located at the same pulse as the conduction band minimum), so it's only natural that these materials should be used for optoelectronics. In nanoscale semiconductor structures, the bandgap energy is modified relative to bulk material by quantum confinement. Quantum confinement has enabled a paradigm...
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Colloidal nanomaterials
Optical properties of nanocrystal lattices
Bibliography
Websites
http://www.30-years-qds.com Nanocrystals: site of a conference retracing 30 years of nanocrystal research. The site includes videos of talks given by the main players in the field.
Events and conferences
Gordon research conference: Colloidal Semiconductor Nanocrystals. Held every two years in the United States.
Material Research Society meeting, a conference held twice a year in the United States. The European equivalent (E-MRS) is also held twice a year.
QD conference: every...
Standards and norms
- Relative à la chromaticité des écrans. - Norme CIE XYZ et UVW - 1931 et 1976
Regulations
For nano-related regulations: the R-nano website ( https://www.r-nano.fr ) lists legislation relating to nanoparticles in France.
Directory
Companies involved in nanocrystal production in France
Nexdot – http://www.nex-dot.com/ – spin off from ESPCI's LPEM laboratory
Attonuclei – http://www.attonuclei.com/
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