Studies of Bi-layers Growth Mechanism of Silver Bromide Molecular Clusters Prepared Via Electroporation of Vesicles and Quantum Confinement Effects Applications of Molecular Clusters
Our previous work show that in the molecular cluster regime, the band blue shift associated with cluster growth can be understood by a model that assume electrons are confined to a spherical potential well and the clusters are made of some basic units. A formula is given for the lowest excited electronic state energy. This expression contains an electron-hole-pair (EHP) delocalization constant as an adjustable parameter which, however, can be anchored to a definite value through the known transition energy at the spectra turn-around point. We also proposed symmetry and probability principles in molecular cluster growth range to explain the molecular cluster electron absorption spectra turn-around phenomena and unusual isotopic properties of small silver bromide clusters. In this paper, based on systematical review of Quasi-Elastic Light Scattering (QELS), Fourier-transform infrared spectroscopy (FTIR) and Direct Laser Desorption Mass Spectra (DLD-MS) experiments of silver bromide clusters prepared via the electroporation of vesicles, we show how the symmetry and probability principles in molecular cluster growth range can be used to explain the lager silver bromide molecular cluster formation in a bilayer formation mechanism. The turn round curve of energy gap vs confine sphere size had been proved to be a right curve to describe the molecular cluster quantum confinement behavior. We also defined Electron Delocalized Status (EDS), Electron Localized Status (ELS), and EDS/ELS switch or quantum confinement switch (QCS) in the quantum confine system. These studies pave the theoretical and technical ways for advanced device technology continue shrink and new concept device generation in the atomic and molecular cluster size range.