The world-record power conversion efficiency(PCE)of organometallic perovskite solar cells(PSCs)has rapidly increased to 25.2% within ten years due to the superb optoelectronic properties of the organometallic perovski...The world-record power conversion efficiency(PCE)of organometallic perovskite solar cells(PSCs)has rapidly increased to 25.2% within ten years due to the superb optoelectronic properties of the organometallic perovskite materials[1-4].However,the long-term stability issue remains a key obstacle for the commercialization of PSCs[5].There are several extrinsic and intrinsic factors known to directly influence the stability of PSCs.Extrinsic factors such as moisture and oxygen in the air can accelerate the degradation of PSCs,but such factors can be effectively eliminated by advanced encapsulation technologies[6,7].展开更多
Metal halide perovskites possess appealing optoelectronic properties and have been widely applied for solar energy harvesting and light emitting.Although perovskite solar cells(PeSCs)and perovskite light-emitting diod...Metal halide perovskites possess appealing optoelectronic properties and have been widely applied for solar energy harvesting and light emitting.Although perovskite solar cells(PeSCs)and perovskite light-emitting diodes(PeLEDs)have been developed rapidly in recent years,there are still no universal rules for the selection of perovskites to achieve high-performance optoelectronic devices.In this review,the working mechanisms of PeSCs and PeLEDs are first demonstrated with the discussion on the factors which determine the device performance.We then examine the optoelectronic properties of perovskites with structures modulated from 3D,2D,1D to 0D,and analyze the corresponding structure-property relationships in terms of photo-electric and electric-photo conversion processes.Based on the unique optoelectronic properties of structurally modulated perovskites,we put forward the concept of structural assembling engineering that integrate the merits of different types of perovskites within one matrix and elaborate their excellent properties for applications of both PeSCs and PeLEDs.Finally,we discuss the potential challenges and provide our perspectives on the structural assembling engineering of perovskites for future optoelectronic applications.展开更多
基金funded by the National University of Singapore(NUS)and Singapore’s National Research Foundation(NRF)through the Singapore Economic Development Board(EDB)the National Key Research and Development Program of China(2017YFA0206600)the National Natural Science Foundation of China(51773045,21772030,51922032,21961160720)for financial support。
文摘The world-record power conversion efficiency(PCE)of organometallic perovskite solar cells(PSCs)has rapidly increased to 25.2% within ten years due to the superb optoelectronic properties of the organometallic perovskite materials[1-4].However,the long-term stability issue remains a key obstacle for the commercialization of PSCs[5].There are several extrinsic and intrinsic factors known to directly influence the stability of PSCs.Extrinsic factors such as moisture and oxygen in the air can accelerate the degradation of PSCs,but such factors can be effectively eliminated by advanced encapsulation technologies[6,7].
基金Singapore Economic Development BoardEnergy Market Authority of Singapore+3 种基金National Research Foundation SingaporeNational University of SingaporeInternational Postdoctoral Exchange Fellowship Program(Talent-Introduction Program)of ChinaBoya Postdoctoral program of Peking University。
文摘Metal halide perovskites possess appealing optoelectronic properties and have been widely applied for solar energy harvesting and light emitting.Although perovskite solar cells(PeSCs)and perovskite light-emitting diodes(PeLEDs)have been developed rapidly in recent years,there are still no universal rules for the selection of perovskites to achieve high-performance optoelectronic devices.In this review,the working mechanisms of PeSCs and PeLEDs are first demonstrated with the discussion on the factors which determine the device performance.We then examine the optoelectronic properties of perovskites with structures modulated from 3D,2D,1D to 0D,and analyze the corresponding structure-property relationships in terms of photo-electric and electric-photo conversion processes.Based on the unique optoelectronic properties of structurally modulated perovskites,we put forward the concept of structural assembling engineering that integrate the merits of different types of perovskites within one matrix and elaborate their excellent properties for applications of both PeSCs and PeLEDs.Finally,we discuss the potential challenges and provide our perspectives on the structural assembling engineering of perovskites for future optoelectronic applications.
