THE IMPACT OF QUANTUM SIZE EFFECTS ON THERMOELECTRIC PERFORMANCE IN SEMICONDUCTOR NANOSTRUCTURES

CuInS2 nanostructures were  synthesized  via  a  simple  surfactant-free solvothermal  route.  In  this  synthesis,  thiosemicarbazide  and thioglycolic acid were used as sulfur sources. The effects of different parameters such as type of precursor and time on the morphology and particle  size  of  the  samples  have  been  investigated.  The nanostructures  were  characterized  by  means ...

Localized surface plasmon resonances (LSPRs) typically arise in nanostructures of noble metals resulting in enhanced and geometrically tunable absorption and scattering resonances. LSPRs, however, are not limited to nanostructures of metals and can also be achieved in semiconductor nanocrystals with appreciable free carrier concentrations. Here, we describe well-defined LSPRs arising from p-typ...

Nanostructures generated from block copolymer self-assembly enable a variety of potential technological applications. In this article we review recent work and the current status of two major emerging applications of block copolymer (BCP) nanostructures: lithography for microelectronics and photovoltaics. We review the progress in BCP lithography in relation to the requirements of the semicondu...

Phonon induced unavoidable decoherence of orbital degrees of freedom (charge) in quantum dots is studied and the relevant time scales are estimated for state-of-the-art self-assembled nanostructures. An significant enhancement of the effective Fröhlich constant due to localization is indicated. Temporal partial inefficiency of spin Pauli blocking in quantum dots, caused by lattice inertia, is p...

(Dated: March 12, 2004) The feasibility of creating molecular quantum entanglement in functionalized semiconductor nanostructures is computationally demonstrated. Entangled hole states, localized deep in the semiconductor band gap, are generated by electron-hole pair separation after photoexcitation of molecular surface complexes. The approach is illustrated for model arrays of catechol molecul...

Semiconductor nanostructures are potential building blocks for many applications in photonics, electronics, physics, and life sciences. They are also a good candidate to study quantum mechanics and related novel phenomena, based on the dimensionality and the size reduction. Among various nanostructures, one-dimensional (1-D) III-V nanostructures grown on Si substrates have received a lot of att...

Photocatalytic activity of semiconductor nanostructures is gaining much importance in recent years in both energy and environmental applications. However, several parameters play a crucial role in enhancing or suppressing the photocatalytic activity through, for example, modifying the band gap energy positions, influencing the generation and transport of charge carriers and altering the recombi...