| In recent years,research on organic inorganic hybrid metal halide perovskite materials has made significant progress in the field of photovoltaic（PV）,in the course of the study a variety of excellent characteristics of perovskite materials being excavated,such as high carrier mobility and long carrier diffusion length,with direct band gap,narrow photoluminescence peak,simple color tunability,solution workability,and low material cost.With a deeper understanding of the photoelectronic properties of perovskite materials,the relationship between material-structural-properties has been further clarified.Therefore,the applications of perovskite materials in the field of photoelectronic and electronic devices other than solar cells have been reported successively,such as light-emitting diodes,light detectors,lasers,and memory,etc.Surprisingly,this semiconductor material performs extremely well in all of these areas.This thesis mainly involves the application research of MAPbI3 perovskite thin film materials in the field of solar cells and FAPbBr3 perovskite thin film materials in the field of luminescence.（i）by doping Mg to carrier transport layer SnO2 to improve the performance of photovoltaic devices;（ii）by doping rare earth element La to modification perovskite thin films to improve the photoluminescence efficiency;（iii）by doping Cs to the active layer to improve the crystallization quality and adding modified layer PMMA to improve the performance of light emitting diode（LED）devices.Although this article in view of the material and devices modification made some progress,and for the future more in-depth analysis provides a train of thought,but perovskite materials still have many deficiencies need to be improved,such as the thermal stability problem in the process of application is particularly important,it’s also the focus in future research. |
