Managing Interfacial Defects and Carriers by Synergistic Modulation of Functional Groups and Spatial Conformation for High-Performance Perovskite Photovoltaics Based on Vacuum Flash Method

Gao，Deyu1,2; Li，Ru3; Chen，Xihan4; Chen，Cong1,2; Wang，Chenglin2; Zhang，Boxue5; Li，Mengjia2; Shang，Xueni2; Yu，Xuemeng4; Gong，Shaokuan4; Pauporté，Thierry5; Yang，Hua6; Ding，Liming7; Tang，Jian Xin1,8; Chen，Jiangzhao3

2023

10.1002/adma.202301028

Advanced Materials   影响因子和分区

0935-9648

1521-4095

Interfacial nonradiative recombination loss is a huge barrier to advance the photovoltaic performance. Here, one effective interfacial defect and carrier dynamics management strategy by synergistic modulation of functional groups and spatial conformation of ammonium salt molecules is proposed. The surface treatment with 3-ammonium propionic acid iodide (3-APAI) does not form 2D perovskite passivation layer while the propylammonium ions and 5-aminopentanoic acid hydroiodide post-treatment lead to the formation of 2D perovskite passivation layers. Due to appropriate alkyl chain length, theoretical and experimental results manifest that -COOH and -NH groups in 3-APAI molecules can form coordination bonding with undercoordinated Pb and ionic bonding and hydrogen bonding with octahedron PbI, respectively, which makes both groups be simultaneously firmly anchored on the surface of perovskite films. This will strengthen defect passivation effect and improve interfacial carrier transport and transfer. The synergistic effect of functional groups and spatial conformation confers 3-APAI better defect passivation effect than 2D perovskite layers. The 3-APAI-modified device based on vacuum flash technology achieves an alluring peak efficiency of 24.72% (certified 23.68%), which is among highly efficient devices fabricated without antisolvents. Furthermore, the encapsulated 3-APAI-modified device degrades by less than 4% after 1400 h of continuous one sun illumination.

functional groups interfacial engineering perovskite solar cells spatial conformation synergistic modulation

SCI ; EI

英语

NI论文 ; ESI高被引

其他

Science and Technology Development Fund (FDCT), Macau SAR[0018/2022/A1] ; Macao Young Scholars Program[AM2021013] ; National Natural Science Foundation of China["62004058","U21A2076","62274018","21701041","52071048","62274117"] ; Natural Science Foundation of Hebei Province[F2020202022] ; Open Fund of the State Key Laboratory of Integrated Optoelectronics[IOSKL2020KF09] ; State Key Laboratory of Reliability and Intelligence of Electrical Equipment["EERI_PI20200005","EERI_0Y2021001"] ; Fundamental Research Funds for the Central Universities[2020CDJ-LHZZ-074] ; Natural Science Foundation of Chongqing["cstc2020jcyj-msxmX0629","cx2020003"] ; Hebei Graduate Innovation Funding Project["CXZZSS2023026","CXZZBS2023037"]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000974366700001

WILEY-V C H VERLAG GMBH

20231713954974

Ammonia ; Cell engineering ; Conformations ; Hydrogen bonds ; Molecules ; Passivation ; Perovskite ; Perovskite solar cells ; Positive ions ; Saturated fatty acids ; Surface treatment

Biomedical Engineering:461.1 ; Minerals:482.2 ; Protection Methods:539.2.1 ; Solar Cells:702.3 ; Physical Chemistry:801.4 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3

MATERIALS SCIENCE

2-s2.0-85153039646

Scopus

1.Macao Institute of Materials Science and Engineering (MIMSE),Faculty of Innovation Engineering,Macau University of Science and Technology,Taipa, SAR,999078,Macao
2.State Key Laboratory of Reliability and Intelligence of Electrical Equipment,School of Materials Science and Engineering,Hebei University of Technology,Tianjin,300401,China
3.Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education),College of Optoelectronic Engineering,Chongqing University,Chongqing,400044,China
4.SUSTech Energy Institute for Carbon Neutrality,Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
5.Chimie ParisTech,PSL Research University,CNRS,Institut de Recherche de Chimie Paris (IRCP),UMR8247,11 rue P. et M. Curie,Paris,F-75005,France
6.Center for Excellence in Nanoscience (CAS),Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS),National Center for Nanoscience and Technology,Beijing,100190,China
7.Institute of High Energy Physics,Chinese Academy of Sciences (CAS),Beijing,100049,China
8.Collaborative Innovation Center of Suzhou Nano Science & Technology,Institute of Functional Nano & Soft Materials (FUNSOM),Soochow University,Suzhou,Jiangsu,215123,China

Gao，Deyu,Li，Ru,Chen，Xihan,et al. Managing Interfacial Defects and Carriers by Synergistic Modulation of Functional Groups and Spatial Conformation for High-Performance Perovskite Photovoltaics Based on Vacuum Flash Method[J]. Advanced Materials,2023,35(23).

Gao，Deyu.,Li，Ru.,Chen，Xihan.,Chen，Cong.,Wang，Chenglin.,...&Chen，Jiangzhao.(2023).Managing Interfacial Defects and Carriers by Synergistic Modulation of Functional Groups and Spatial Conformation for High-Performance Perovskite Photovoltaics Based on Vacuum Flash Method.Advanced Materials,35(23).

Gao，Deyu,et al."Managing Interfacial Defects and Carriers by Synergistic Modulation of Functional Groups and Spatial Conformation for High-Performance Perovskite Photovoltaics Based on Vacuum Flash Method".Advanced Materials 35.23(2023).