有机-无机杂化钙钛矿太阳能电池自问世以来,因其光电转换效率迅速提升得到全球的广泛关注.目前,其光电转换效率已高达25.2%.为实现实际应用,提高其稳定性已成为该领域最为关键的问题.本文作者进行了室温磁控溅射ITO的技术研究,成功利用...有机-无机杂化钙钛矿太阳能电池自问世以来,因其光电转换效率迅速提升得到全球的广泛关注.目前,其光电转换效率已高达25.2%.为实现实际应用,提高其稳定性已成为该领域最为关键的问题.本文作者进行了室温磁控溅射ITO的技术研究,成功利用ITO代替钙钛矿太阳能电池的金属顶电极,其制备的半透明电池光电转换效率可达16.7%.最重要的是其在手套箱中储存2000小时以上,电池效率无任何衰减.此外,研究人员发现该半透明太阳能电池具有非常高的双面电池的应用前景,通过改变电池背电极后的反射介质可成功将其输出功率提高至20 m W/cm^2.最后文章指出目前室温下制备的ITO仍然存在透射率低的问题,随着该技术的进一步优化,不断提高其透过率,其双面光伏特性可得到大幅提高.届时,该类电池也将在光伏建筑一体化应用中崭露头角.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。
文摘有机-无机杂化钙钛矿太阳能电池自问世以来,因其光电转换效率迅速提升得到全球的广泛关注.目前,其光电转换效率已高达25.2%.为实现实际应用,提高其稳定性已成为该领域最为关键的问题.本文作者进行了室温磁控溅射ITO的技术研究,成功利用ITO代替钙钛矿太阳能电池的金属顶电极,其制备的半透明电池光电转换效率可达16.7%.最重要的是其在手套箱中储存2000小时以上,电池效率无任何衰减.此外,研究人员发现该半透明太阳能电池具有非常高的双面电池的应用前景,通过改变电池背电极后的反射介质可成功将其输出功率提高至20 m W/cm^2.最后文章指出目前室温下制备的ITO仍然存在透射率低的问题,随着该技术的进一步优化,不断提高其透过率,其双面光伏特性可得到大幅提高.届时,该类电池也将在光伏建筑一体化应用中崭露头角.
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.
