Co-adsorbed self-assembled monolayer enables high-performance perovskite and organic solar cells

Li, Dongyang1,2; Lian, Qing1; Du, Tao3; Ma, Ruijie2; Liu, Heng4; Liang, Qiong2; Han, Yu2; Mi, Guojun1; Peng, Ouwen1; Zhang, Guihua1; Peng, Wenbo1; Xu, Baomin1; Lu, Xinhui4; Liu, Kuan2; Yin, Jun3; Ren, Zhiwei2; Li, Gang2,5; Cheng, Chun1,6,7

2024-09-01

10.1038/s41467-024-51760-5

NATURE COMMUNICATIONS   影响因子和分区

2041-1723

["Self-assembled monolayers (SAMs) have become pivotal in achieving high-performance perovskite solar cells (PSCs) and organic solar cells (OSCs) by significantly minimizing interfacial energy losses. In this study, we propose a co-adsorb (CA) strategy employing a novel small molecule, 2-chloro-5-(trifluoromethyl)isonicotinic acid (PyCA-3F), introducing at the buried interface between 2PACz and the perovskite/organic layers. This approach effectively diminishes 2PACz's aggregation, enhancing surface smoothness and increasing work function for the modified SAM layer, thereby providing a flattened buried interface with a favorable heterointerface for perovskite. The resultant improvements in crystallinity, minimized trap states, and augmented hole extraction and transfer capabilities have propelled power conversion efficiencies (PCEs) beyond 25% in PSCs with a p-i-n structure (certified at 24.68%). OSCs employing the CA strategy achieve remarkable PCEs of 19.51% based on PM1:PTQ10:m-BTP-PhC6 photoactive system. Notably, universal improvements have also been achieved for the other two popular OSC systems. After a 1000-hour maximal power point tracking, the encapsulated PSCs and OSCs retain approximately 90% and 80% of their initial PCEs, respectively. This work introduces a facile, rational, and effective method to enhance the performance of SAMs, realizing efficiency breakthroughs in both PSCs and OSCs with a favorable p-i-n device structure, along with improved operational stability.","Self-assembled monolayers are essential for achieving high performance solar cells by minimizing interfacial energy losses. Here, authors the develop a co-adsorb strategy with a small molecule to provide a favorable heterointerface, realizing high efficiency in p-i-n perovskite and organic devices."]

SCI

英语

第一 ; 通讯

Hong Kong Polytechnic University (Hong Kong PolyU)["15221320","15307922","C4005-22Y","C7018-20G"] ; Research Grants Council of Hong Kong[SRFS2223-5S01] ; RGC Senior Research Fellowship Scheme[JCYJ20200109105003940] ; Shenzhen Science and Technology Innovation Commission["8-8480","Q-CD7X"] ; Hong Kong Polytechnic University: Sir Sze-yuen Chung Endowed Professorship Fund[2019B121205001] ; Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal Electrical Energy Materials and Devices (GDSTC)["1-YW4C","1-BD1H","1-CD94"] ; PolyU Distinguished Postdoctoral Fellowship[22305111] ; National Natural Science Foundation of China[P0042930] ; Hong Kong Polytechnic University[25300823] ; Research Grants Council of the Hong Kong Special Administrative Region, China[20231115112954001]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:001302620200005

NATURE PORTFOLIO

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Hong Kong Polytech Univ, Res Inst Smart Energy RISE, Photon Res Inst PRI, Dept Elect & Elect Engn,Hung Hom, Hong Kong 999077, Peoples R China
3.Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong 999077, Peoples R China
4.Chinese Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
5.Hong Kong Polytech Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
6.Southern Univ Sci & Technol, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Guangdong, Peoples R China
7.Southern Univ Sci & Technol, Shenzhen Engn Res & Dev Ctr Flexible Solar cells, Shenzhen 518055, Guangdong, Peoples R China

Li, Dongyang,Lian, Qing,Du, Tao,et al. Co-adsorbed self-assembled monolayer enables high-performance perovskite and organic solar cells[J]. NATURE COMMUNICATIONS,2024,15(1).

Li, Dongyang.,Lian, Qing.,Du, Tao.,Ma, Ruijie.,Liu, Heng.,...&Cheng, Chun.(2024).Co-adsorbed self-assembled monolayer enables high-performance perovskite and organic solar cells.NATURE COMMUNICATIONS,15(1).

Li, Dongyang,et al."Co-adsorbed self-assembled monolayer enables high-performance perovskite and organic solar cells".NATURE COMMUNICATIONS 15.1(2024).