Metallic quantum dot

Coulomb blockades in metallic quantum dots inform on the ability to trap and to store single electrons in a distinct voltage region. Practically this means nothing but to have a single electron switch If this is the case at room... 

Keywords Fluorescent marker Nanoclusters Nanodots Nanoscale metal Quantum dots... 

The materials described in this chapter are denoted in the literature mostly as metal clusters or metal nanoclusters . However, the terminology metal clusters spans various scientific disciplines and has consequently multiple meanings, including plasmonic nanoparticles and various nanosized metallic structures. Therefore alternative names have been given, although they are at the moment supported only by a fraction of the scientific community quantum clusters [26], nanodots [27], metal quantum dots [25] and superatoms [28]. 

The quantized silver clusters can be considered as metal quantum dots , because these are zero-dimensional materials where the band gap is formed by... 

Zheng J, Nicovich PR, Dickson RM (2007) Highly fluorescent noble-metal quantum dots. Arum Rev Phys Chem 58 409431... 

Ormosils can possess excellent transparency when processing conditions are optimized. Moreover, they are typically nonporous. Their properties, as well as their low-temperature processing, make them ideal candidates as optical host media for a wide range of optically active species. These include laser dyes [51,53,55], photochromic molecules [52], second-harmonic-generating dielectric oxides [54], semiconductor quantum dots [53], and metallic quantum dots... 

Very recently, a novel and versatile method has been reported for the construction of stable, zero-valent metal quantum dots, using dendrimers as well-defined nano-template/containers. The concept involves the use of dendrimers as hosts to preorganize small molecules or metal ions, followed by a simple in situ reaction, which immobilizes and incarcerates these nanodomains (Figure 17) [89]. The size, shape, size distribution, and surface functionality of the dendritic nanocomposites are determined and controlled by the architecture. Dendrimer-based nanocomposites display unique physical and chemical properties as a consequence of the atomic/molecular level interactions between the guest and host components within the dendrimer as well as the dendrimer interaction with various solvents and media. 

The appealing feature offered by the LB deposition of nanoparticles is the possibility to generate ordered arrays of metal quantum dots with new features due to the prevailing confinement. The band gap of a semiconductor nanoparticle is strongly size-dependent, while the optical absorption of metal nanoparticles depends on... 

Remade, F., Levine, R. D. Current-voltage-temperature characteristics for 2D arrays of metallic quantum dots. Israel J Chem 2002,42, 269-280. 

The STL technique has by now been extensively applied to generate light emission from individual semiconductor and metal quantum dots. These nanoparticles are generally smaller than 100 nm and larger than a few atoms. In the case of semiconductors, quantum confinement causes the energy level structure... 

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