Subject Code:C05 With the support by the National Natural Science Foundation of China,the research team led by Dr.Li Qing(李晴)at the State Key Laboratory of Protein and Plant Gene Research,School of Life Sciences and...Subject Code:C05 With the support by the National Natural Science Foundation of China,the research team led by Dr.Li Qing(李晴)at the State Key Laboratory of Protein and Plant Gene Research,School of Life Sciences and Peking-Tsinghua Center for Life Sciences,Peking University,Beijing,recently reported that展开更多
Owing to unique advantages of patternability and high substrate compatibility,screen-printing allows for the fabrication of flexible perovskite solar cells(f-PSCs)with designable device patterns,while the defective an...Owing to unique advantages of patternability and high substrate compatibility,screen-printing allows for the fabrication of flexible perovskite solar cells(f-PSCs)with designable device patterns,while the defective and fragile contact at the buried interface seriously restricted the device performance.Herein,a series of siloxane coupling agents(SCAs)with different ending groups i.e.,-SH,-NH_(2),and-CN were incorporated at the SnO_(2)/perovskite interface,which can selectively interact with MA+and Pb^(2+)via hydrogen and coordination bonding,respectively.It was revealed that the selection of(3-Cyanopropyl)Triethoxysilane(CN-PTES)can regulate perovskite crystallization with accelerated nucleation and retarded crystal growth,leading to improved crystallinity with released residual lattice strain.Moreover,the incorporated CN-PTES aligned the energy structure of the underlying SnO_(2)and boosted the interfacial adhesion between perovskite and SnO_(2),resulting in facilitated electron extraction and enhanced interfacial fracture energy.Consequently,the first screen-printed f-PSCs with improved mechanical resistance were finally obtained.展开更多
文摘Subject Code:C05 With the support by the National Natural Science Foundation of China,the research team led by Dr.Li Qing(李晴)at the State Key Laboratory of Protein and Plant Gene Research,School of Life Sciences and Peking-Tsinghua Center for Life Sciences,Peking University,Beijing,recently reported that
基金supported by the Natural Science Foundation of China(22425903,U24A20568,61705102,62288102,22409091,22409090 and 62205142)the National Key R&D Program of China(2023YFB4204500,2020YFA07099003)+1 种基金the Jiangsu Provincial Departments of Science and Technology(BK20241875,BE2022023,BK20220010,and BZ2023060)the Excellent Doctoral Dissertation Cultivation Program of Nanjing Tech University(2023-02).
文摘Owing to unique advantages of patternability and high substrate compatibility,screen-printing allows for the fabrication of flexible perovskite solar cells(f-PSCs)with designable device patterns,while the defective and fragile contact at the buried interface seriously restricted the device performance.Herein,a series of siloxane coupling agents(SCAs)with different ending groups i.e.,-SH,-NH_(2),and-CN were incorporated at the SnO_(2)/perovskite interface,which can selectively interact with MA+and Pb^(2+)via hydrogen and coordination bonding,respectively.It was revealed that the selection of(3-Cyanopropyl)Triethoxysilane(CN-PTES)can regulate perovskite crystallization with accelerated nucleation and retarded crystal growth,leading to improved crystallinity with released residual lattice strain.Moreover,the incorporated CN-PTES aligned the energy structure of the underlying SnO_(2)and boosted the interfacial adhesion between perovskite and SnO_(2),resulting in facilitated electron extraction and enhanced interfacial fracture energy.Consequently,the first screen-printed f-PSCs with improved mechanical resistance were finally obtained.
