典型文献
Heterogeneous FASnI3 Absorber with Enhanced Electric Field for High-Performance Lead-Free Perovskite Solar Cells
文献摘要：
Lead-free tin perovskite solar cells(PSCs)have undergone rapid development in recent years and are regarded as a promising eco-friendly photovoltaic technology.However,a strategy to suppress charge recombination via a built-in electric field inside a tin perovskite crystal is still lacking.In the present study,a formamidinium tin iodide(FASnI3)perovskite absorber with a vertical Sn2+gradient was fabricated using a Lewis base-assisted recrystallization method to enhance the built-in electric field and minimize the bulk recombination loss inside the tin perovskites.Depth-dependent X-ray photoelectron spectroscopy revealed that the Fermi level upshifts with an increase in Sn2+content from the bottom to the top in this heterogeneous FASnI3 film,which generates an additional electric field to prevent the trapping of photo-induced electrons and holes.Conse-quently,the Sn2+-gradient FASnI3 absorber exhibits a promising efficiency of 13.82％for inverted tin PSCs with an open-circuit voltage increase of 130 mV,and the optimized cell maintains over 13％efficiency after con-tinuous operation under 1-sun illumination for 1,000 h.
文献关键词：
中图分类号：
作者姓名：
Tianhao Wu;Xiao Liu;Xinhui Luo;Hiroshi Segawa;Guoqing Tong;Yiqiang Zhang;Luis K.Ono;Yabing Qi;Liyuan Han
作者机构：
State Key Laboratory of Metal Matrix Composites,School of Material Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,People's Republic of China;Energy Materials and Surface Sciences Unit(EMSSU),Okinawa Institute of Science and Technology Graduate University(OIST),1919-1 Tancha,Onna-son,Kunigami-gun,Okinawa 904-0495,Japan;Special Division of Environmental and Energy Science,Komaba Organization for Educational Excellence(KOMEX),College of Arts and Sciences,University of Tokyo,Tokyo 153-8902,Japan;School of Materials Science and Engineering,Henan Institute of Advanced Technology,Zhengzhou University,Zhengzhou 450001,People's Republic of China
文献出处：
引用格式：
[1]Tianhao Wu;Xiao Liu;Xinhui Luo;Hiroshi Segawa;Guoqing Tong;Yiqiang Zhang;Luis K.Ono;Yabing Qi;Liyuan Han-.Heterogeneous FASnI3 Absorber with Enhanced Electric Field for High-Performance Lead-Free Perovskite Solar Cells)[J].纳微快报（英文）,2022(06):234-247
A类：
FASnI3,Absorber,Sn2+gradient,upshifts,Sn2+content
B类：
Heterogeneous,Enhanced,Electric,Field,High,Performance,Lead,Free,Perovskite,Solar,Cells,free,solar,cells,PSCs,have,undergone,rapid,development,recent,years,are,regarded,promising,friendly,photovoltaic,technology,However,strategy,suppress,charge,recombination,via,built,electric,field,inside,still,lacking,In,present,study,formamidinium,iodide,absorber,vertical,was,fabricated,using,Lewis,base,assisted,recrystallization,method,enhance,minimize,bulk,loss,perovskites,Depth,dependent,ray,photoelectron,spectroscopy,revealed,that,Fermi,level,increase,from,bottom,top,this,heterogeneous,film,which,generates,additional,prevent,trapping,induced,electrons,holes,Conse,quently,exhibits,efficiency,inverted,open,circuit,voltage,mV,optimized,maintains,over,after,tinuous,operation,sun,illumination
AB值：
0.603155
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
