Dual-Interface Modulation with Covalent Organic Framework Enables Efficient and Durable Perovskite Solar Cells

Guo, Junjun1; Meng, Genping2; Zhang, Xuliang1; Huang, Hehe1; Shi, Junwei3; Wang, Baodui2; Hu, Xiaotian4; Yuan, Jianyu1,5; Ma, Wanli1,6

2023-07-01

10.1002/adma.202302839

ADVANCED MATERIALS   Impact Factor & Quartile

0935-9648

1521-4095

Dual-interface modulation including buried interface as well as the top surface has recently been proven to be crucial for obtaining high photovoltaic performance in lead halide perovskite solar cells (PSCs). Herein, for the first time, the strategy of using functional covalent organic frameworks (COFs), namely HS-COFs for dual-interface modulation, is reported to further understand its intrinsic mechanisms in optimizing the bottom and top surfaces. Specifically, the buried HS-COFs layer can enhance the resistance against ultraviolet radiation, and more importantly, release the tensile strain, which is beneficial for enhancing device stability and improving the order of perovskite crystal growth. Furthermore, the detailed characterization results reveal that the HS-COFs on the top surface can effectively passivate the surface defects and suppress non-radiation recombination, as well as optimize the crystallization and growth of the perovskite film. Benefiting from the synergistic effects, the dual-interface modified devices deliver champion efficiencies of 24.26% and 21.30% for 0.0725 cm(2) and 1 cm(2)-sized devices, respectively. Moreover, they retain 88% and 84% of their initial efficiencies after aging for 2000 h under the ambient conditions (25 & DEG;C, relative humidity: 35-45%) and a nitrogen atmosphere with heating at 65 & DEG;C, respectively.

covalent organic frameworks defect passivation perovskite solar cells stability surface strain

SCI

English

NI Journal Papers

Others

National Key Research and Development Program of China[2022YFE0110300] ; National Natural Science Foundation of China["52261145696","52073198"] ; Natural Science Foundation of Jiangsu Province[BK20211598] ; Science and Technology Program of Suzhou[ST202219]

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

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

WOS:001038747800001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

Web of Science

1.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, 199 Ren Ai Rd,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China
2.Lanzhou Univ, State Key Lab Appl Organ Chem, Key Lab Nonferrous Met Chem & Resources Utilizat G, Lanzhou 730000, Gansu, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem & Chem Engn, 999 Xuefu Ave, Nanchang 330031, Peoples R China
5.Soochow Univ, Jiangsu Key Lab Adv Negat Carbon Technol, Suzhou 215123, Jiangsu, Peoples R China
6.Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China

Guo, Junjun,Meng, Genping,Zhang, Xuliang,et al. Dual-Interface Modulation with Covalent Organic Framework Enables Efficient and Durable Perovskite Solar Cells[J]. ADVANCED MATERIALS,2023.

Guo, Junjun.,Meng, Genping.,Zhang, Xuliang.,Huang, Hehe.,Shi, Junwei.,...&Ma, Wanli.(2023).Dual-Interface Modulation with Covalent Organic Framework Enables Efficient and Durable Perovskite Solar Cells.ADVANCED MATERIALS.

Guo, Junjun,et al."Dual-Interface Modulation with Covalent Organic Framework Enables Efficient and Durable Perovskite Solar Cells".ADVANCED MATERIALS (2023).