Luminescence amplification of dye molecules in the presence of silver nanoparticles

Superatoms and Quasimolecules in Quasi-Zero-Dimensional Nanoheterostructures: Future Research

“…Quasi-zero-dimensional nanosystems (QN) research consisting of nanocrystals of spherical shape -so-called QDs with radii a = 1-10 nm, containing within its scope semiconductors (CdS, CdSe, GaAs, Ge, Si, ZnSe) and insulators (Al2O3), grown in dielectric (semiconductor) matrices, has received increased attention due to their unique photoluminescence properties, the ability to efficiently emit light in the visible or near-infrared bands at room temperature [11][12][13][14][15][16][17][18][19][20][21]. Optical and electro-optical properties of QN (which in some cases exhibit the properties superatomic) largely determines the energy spectrum of space -bounded quasiparticles (electrons, holes, excitons, biexcitons, phonons, polarons, positrons, positrons, etc.)…”

“…The formation of such superatomic accompanied by the emergence of the electronic spectra of QN acceptor levels, the nature of which is unknown in most cases, as well as a sharp drop in the mobility of the charge carriers in QN [13 -21]. For example, in experimental studies [18,19] is set acceptor character nanoparticles Agm (AgmS)n in photoemulsions.…”