Strongly concentrated optical fields around a metal nanoparticle in the close vicinity of dipole noticeably facilitate dramatic changes localized density states due to hybrid photonic–plasmonic mode couplings as compared that pure cavity fields. Significant variations field intensity presence elucidate enhanced light–matter interaction structure. The enhancement factor is studied through single...

Semiconductor nanoplatelets, which offer a compelling combination of the flatness two-dimensional semiconductors and inherent richness brought about by colloidal nanostructure synthesis, form an ideal general testbed to investigate fundamental physical effects related dimensionality semiconductors. With low temperature scanning tunnelling spectroscopy tight binding calculations, we conduction b...

A nanocrystal thin-film solar cell operating on an exciton splitting pattern requires a highly efficient separation of electron-hole pairs and transportation of separated charges. A hybrid bulk-heterojunction (HBH) nanostructure providing a large contact area and interpenetrated charge channels is favorable to an inorganic nanocrystal solar cell with high performance. For this freshly appeared ...

High- and reproducible-performance photodetectors are critical to the development of many technologies, which mainly include one-dimensional (1D) nanostructure based and film based photodetectors. The former suffer from a huge performance variation because the performance is quite sensitive to the synthesis microenvironment of 1D nanostructure. Herein, we show that the graphene/semiconductor fi...

The calculation of the optical and electronic properties of semiconductor nanostructures is still based for the most part on highly approximated, continuum-like models such as the effective-mass approximation, which do not take into account the atomistic structure of the quantum dots. We present here an atomistic pseudopotential approach to the calculation of excited states in semiconductor nan...

The stochastic formulation of multiexciton generation (MEG) rates is extended to provide access to MEG efficiencies in nanostructures containing thousands of atoms. The formalism is applied to a series of CdSe/CdS seeded nanorod heterostructures with different core and shell dimensions. At energies above 3Eg (where Eg is the band gap), the MEG yield increases with decreasing core size, as expec...

A novel buffering method is presented to improve the stability of zinc oxide processed in aqueous solutions. By buffering the aqueous solution with a suitable quantity of sacrificial zinc species, the dissolution offunctional zinc oxide structures and' the formation of unwanted impurities can be prevented. The method is demonstrated for ZnO films and nanowires processed in aqueous solutions use...

In this study, Eu-doped CdSe nanoparticles with variable Eu3+ content were synthesized by a simple sonochemical method. Eu3+ substitution into the structure of CdSe resulted in a material with new physical properties, composition and morphology. The synthesized nanoparticles were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscop...