The Effect Of Solar Energy On Silicon Solar Cell Technology

Solar energy is widely believed to be the most promising renewable energy source to fulfill the ever-increasing energy demand from human society now and into the future. Dye-sensitized solar cells (DSSCs) have been explored as a potentially low-cost alternative to silicon solar cell technology due to their lower fabrication costs compared to crystalline semiconductor photovoltaics. However, the optimized efficiency for DSSCs has not been achieved yet, and the chemical stability between dye and semiconductor has also not been addressed completely. In this research, we applied the following four main strategies to prepare photoanodes used in DSSCs with the aim of improving stability and efficiency: 1) utilizing surface chemistry to modify the porous semiconductor films, 2) linking covalently [Di-tetrabutylammoniumcis-bis (isothiocyanato) bis (2, 2’-bipyridyl-4, 4’dicarboxy-lato) ruthenium (II), N719] dye on the surface of semiconductor films, and study the charge injectio n dynamics by ultrafast transient absorption spectroscopy, 3) doping the semiconductor films with micro-sized neodymium oxide (Nd2O3) particles, and (4) incorporating metal nanoparticles through molecular linkers to the semiconductor films. 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