Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines
Chen, Hao1,2,3; Wei, Qi1; Saidaminov, Makhsud, I4; Wang, Fei1; Johnston, Andrew4; Hou, Yi4; Peng, Zijian1; Xu, Kaimin1; Zhou, Wenjia1; Liu, Zhenghao5; Qiao, Lu6; Wang, Xiao1; Xu, Siwen1; Li, Jiangyu5,7; Long, Run6; Ke, Youqi1; Sargent, Edward H.4; Ning, Zhijun1
AbstractLarge-bandgap perovskites offer a route to improve the efficiency of energy capture in photovoltaics when employed in the front cell of perovskite-silicon tandems. Implementing perovskites as the front cell requires an inverted (p-i-n) architecture; this architecture is particularly effective at harnessing high-energy photons and is compatible with ionic-dopant-free transport layers. Here, a power conversion efficiency of 21.6% is reported, the highest among inverted perovskite solar cells (PSCs). Only by introducing a secondary amine into the perovskite structure to form MA(1-)(x)DMA(x)PbI(3) (MA is methylamine and DMA is dimethylamine) are defect density and carrier recombination suppressed to enable record performance. It is also found that the controlled inclusion of DMA increases the hydrophobicity and stability of films in ambient operating conditions: encapsulated devices maintain over 80% of their efficiency following 800 h of operation at the maximum power point, 30 times longer than reported in the best prior inverted PSCs. The unencapsulated devices show record operational stability in ambient air among PSCs.
Keyworddefect density inverted structure perovskite solar cells secondary amine stability
Indexed BySCI ; EI
Funding ProjectUS Department of the Navy, Office of Naval Research[N00014-17-1-2524]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000488150500001
EI KeywordsAmines ; Convergence of numerical methods ; Defect density ; Perovskite
Original Document TypeArticle ; Early Access
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorSargent, Edward H.; Ning, Zhijun
Affiliation1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
4.Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
5.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Nanobiomech, Shenzhen 518055, Guangdong, Peoples R China
6.Beijing Normal Univ, Minist Educ, Coll Chem, Key Lab Theoret & Computat Photochem, Beijing 100875, Peoples R China
7.Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
First Signature AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Chen, Hao,Wei, Qi,Saidaminov, Makhsud, I,et al. Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines[J]. ADVANCED MATERIALS,2019.
APA Chen, Hao.,Wei, Qi.,Saidaminov, Makhsud, I.,Wang, Fei.,Johnston, Andrew.,...&Ning, Zhijun.(2019).Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines.ADVANCED MATERIALS.
MLA Chen, Hao,et al."Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines".ADVANCED MATERIALS (2019).
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