Simulation Analysis of the Transient Absorption Spectroscopic Dynamics of Charge Recombination in a Semiconductor Attached with a Gold Nanoparticle Using Initially Variable Coordinates
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引用次数: 0
Abstract
A Monte Carlo random walk (MCRW) was used to simulate the photocatalytic kinetics of electron diffusion and charge recombination in gold-titanium dioxide (Au/TiO\({}_{2}\)). We designed an MCRW algorithm using MATLAB for one-sided absorption and three-sided reflectance in a rectangle, which conformed to be a good model of photocatalyst nanoparticles (Au/TiO\({}_{2}\)) in ultrafast spectra reported. As the initial point coordinates change, the corresponding absorption histogram and probability density are obtained. From this simulation, we analyzed both the decay of electron particle absorption and the lifetime; namely, the closer the electrons are to the initial coordinates \(x=1\), the faster the corresponding decays are. By means of the fitting curve, we verified that electron diffusion strongly depends on the initial coordinates measured from the TiO\({}_{2}\) nanoparticle interfaces.
期刊介绍：
The scope of Optoelectronics, Instrumentation and Data Processing encompasses, but is not restricted to, the following areas: analysis and synthesis of signals and images; artificial intelligence methods; automated measurement systems; physicotechnical foundations of micro- and optoelectronics; optical information technologies; systems and components; modelling in physicotechnical research; laser physics applications; computer networks and data transmission systems. The journal publishes original papers, reviews, and short communications in order to provide the widest possible coverage of latest research and development in its chosen field.
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