Synthesis Of ZnO-based Materials And The Derivative Materials Of Zns With The Application On Energy

Entering the IT(information technology)era of rapid development,the demand for energy consumption is increasing,humans are heavily dependent on energy.But traditional fossil energy resources are becoming scarce.Countries around the world not only support in R&D(research and development),but also encourage by issuing policies to promote the development of renewable energy,such as photovoltaic technology which is clean and inexhaustible.On the other hand,researchers explore low-energy consumption electronic devices to improve the power usage efficiency,relieving the energy shortage problem.For both the renewable energy technology and low-energy consumption electronic devices,energy materials are highly needed.ZnO materials are typical energy materials.Based on ZnO materials,we designed a low-energy consumption resistance random access memory(RRAM),with ITO/ZnO+SiO2/ZnOx/TiN structure.The information in this memory device can be extracted at a low voltage.And set(high resistance state to low resistance state)voltage also can be changed by a recoverable operation.We also proposed the mechanism of resistance transition,which will help RRAM market application.There are abundant low-dimensional ZnO materials,and their high surface area can contribute to the transport of carriers,we have developed a nano-composite electrode ZnO/Ag/ZnO:Al with sandwiches structure,and applied it on the CIGS thin-film solar cells.The performance of solar cells has been effectively improved,so we also studied the internal mechanism.Out of ZnS derivative,multi-element Cu-Based sulfide semiconductor has been demonstrating its extraordinary potential,taking a large share in energy material application.By studying the dilemma of Cu-Based sulfide semiconductor,we successfully synthesised a novel photovoltaic material--Cu2BaSnS4-xSex thin-film,not only avoiding the band tailing promblem in Cu2ZnSnS4 material(seriously limit efficiency),but also meeting the demand of environmental friendly(scarce Indium in CIGS material).At last,we successfully manufactured the Cu2BaSnS4-xSex thin-film solar cells.Cu3SbS4 material is another ZnS derivative,which is considered a promising material in photoelectric and thermoelectric.However,there is few report regarding high quality Cu3SbS4 thin-film,limiting the wide applications of Cu3SbS4 materials.Through unceasing optimization and exploration,we have prepared high quality Cu3SbS4 thin-film by using low-cost chemical method.