Synthesis Of The Conjugated Polymer Based On The Hexa-peri-hexabenzocoronene&Research Of The Polymer Photovoltaic Device Based On The Novel3-dimensional Polyelectrolyte

During the past several years, as the rapid development of thehuman society, science and technology, people have to confront the crisisof energy and the pollution of environment, which have brought a seriousthreat to our sustainable development in future. In order to find aresolution, people start focusing the research on the other kinds of energy,such as wind energy, tidal energy, solar energy et.. Among all of them, thesolar energy is such a promising way because of its obvious advantageslike low cost, infinite supplement, easy exploring. In the field of the solarcells, by the dramatic evolution in recent years, the conjugated polymersolar cells which possess low cost, printing on the large area andflexibility challenge the traditional silica solar cells. However, the conjugated polymer solar cells are still restrained from the low powerconvert efficiency(PCE) and poor stability compared to the silica solarcells. It is essential for improving the polymer solar cells to devise andsynthesize the conjugated polymer semiconductor scientifically and tofabricate the photovoltaic devices correctly.In this work, we started our research work from both of polymersynthesis and device fabrication in order to achieve the high efficientsolar cells. For polymer synthesis, we first introduced the smallestgraphene unit hexa-peri-hexabenzocoronene into the polymer to improvethe conductivity of the conjugated polymer semiconductor. For devicefabrication, we succeeded in synthesizing two types of3-dimentionalinterfacial polyelectrolytes PSFNBr and PSFN and applied them on thedifferent polymer photovoltaic system, which could lead a simultaneousimprovement for all parameters of the solar cell and achieve anenhancement by78%for efficiency at best.