Quantum dots inorganic nanocrystals

Many inorganic nanocrystals, including CdSe/ZnS core/shell quantum dots and nanocrystals doped with Ce as luminescent centers (e.g., YaOarCe, LaP04 Ce), were synthesized as described above. With particles sizes below 5 nm, narrow size distribution, and high crystallinity, they demonstrated high light yields, a desirable property for efficient scintillators. 

Katsukis, G. Romero-Nieto, C. Malig, J. Ehli, C. Guldi, D.M., Interfacing Nanocarbons with Organic and Inorganic Semiconductors From Nanocrystals/Quantum Dots to Extended Tetrathiafulvalenes. Langmuir 2012,28 11662-11675. 

The size-dependent properties of nanoparticles differ greatly from the corresponding bulk materials. An example is the size quantization phenomenon commonly observed in II-VI and III-V inorganic semiconductor nanocrystals.6 During the intermediate transition towards that of the bulk metal (usually between 2 and 20 nm), localization of electrons and holes in a confined volume causes an increase in its effective optical band gap as the size of the nanoparticle decreases, observed as a blue shift in its optical spectrum. Bms predicted that there should also be a dependence on the redox potential for these same classes of quantum dots.7 Bard and coworkers showed this experimentally and have reported on the direct observation between the... 

Quantum dots are inorganic semiconductor nanocrystals that possess physical dimensions smaller than the exciton Bohr radius, giving rise to the unique phenom-... 

Polysilanes Porous Inorganic Materials Semiconductor Nanocrystal Quantum Dots Short-lived Intermediates Silicon Inorganic Chemistry. 

Biomimetic Synthesis of Nanoparticles Carbonyl Complexes of the Transition Metals Metallic Materials Deposition Metal-organic Precursors Polynuclear Organometallic Cluster Complexes Porous Inorganic Materials Self-assembled Inorganic Architectures Semiconductor Nanocrystal Quantum Dots Sol-Gel Encapsulation of Metal and Semiconductor Nanocrystals. 

Recently in the field of physics of semiconductors and materials science a great attention has been paid to formation and optical properties of semiconductor nanocrystals (quantum dots, QDs) dispersed in inorganic matrixes. An interest to glassy materials with QDs is associated with their unique physical properties and possibility to create elements of optoelectronic devices. Phase separation processes followed by crystallization are the basic in production of such materials. They result in formation of semiconductor nanocrystals stabilized within a glass matrix. The materials are advanced for various applications because of optical and thermal stability and possibility to control optical features through the technology of glass preparation and post-synthesis thermal treatment. 

The development of semiconductor nanocrystals, known as quantum dots (QDs), and similar inorganic fluorescent particles has made NIR diagnostic imaging possible for both in vivo and in vitro applications. QDs benefit from minimal biological interaction (due to their inorganic makeup), minimal photobleaching, tunability, and quantum yields over... 

Figure 3.3 TEM images of three different shapes of inorganic nanocrystals (a) Quantum Dots (QDs), (b) nanorods (NRs), and (c) tetrapods (TPs). Inset shows their respective schematic representations. Reproduced from Ref [44] with permission from WUey.

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