Dopant-free Starlike Molecular Hole Conductor with Ordered Packing for Durable all-Inorganic Perovskite Solar Cells

doi:10.1002/aenm.202303997

IMR OpenIR

	Dopant-free Starlike Molecular Hole Conductor with Ordered Packing for Durable all-Inorganic Perovskite Solar Cells
	Duan, Chenghao 1,2; Zou, Feilin 1; Li, Shiang 2; Zhu, Qiliang 1; Li, Jiong 1; Chen, Honggang 1; Zhang, Zheng 1; Chen, Chang 1; Guo, Huan 1; Qiu, Jianhang 3; Wang, Ke 1; Dong, Yuyan 1; Qiu, Yongcai 1; Ding, Liming 4; Lu, Xinhui 2; Luo, Hongze 5; Yan, Keyou 1
通讯作者	Lu, Xinhui(xinhui.lu@cuhk.edu.hk) ; Yan, Keyou(kyyan@scut.edu.cn)
	2024-01-24
发表期刊	ADVANCED ENERGY MATERIALS
ISSN	1614-6832
页码	11
摘要	All-inorganic n-i-p perovskite solar cells (PSCs) using doped Spiro-OMeTAD as hole transport material (HTM) suffer from photothermal stability due to ionic diffusion and radical-induced degradation by the dopants. In this article, dopant-free starlike molecule (N2, N2-bis(4-(bis(4-methoxyphenyl)amino)phenyl)-N5,N5-bis(4-methoxyphenyl)pyridine-2,5-diamine (BD)) is synthesized to engineer the stacking properties and delivered higher hole mobility than doped Spiro-OMeTAD (3.2 x 10-4 versus 1.76 x 10-4 cm2 V-1 s-1) as dopant-free HTM. Starlike BD HTM has a twisted acceptor unit and strong dipole, forming crystalline and ordered packing film to ensure intramolecular charge transfer and improve mobility. The BD CsPbI3 PSCs deliver the maximum efficiency of 19.19%, which is the highest performance for all-inorganic PSCs based on dopant-free HTMs. Meanwhile, the ordered molecules-packing blocks the migration channel of I- ions to metal electrodes and improves the device stability. BD-based devices maintain more than 93% and 80% of the initial efficiency after 85 degrees C storage for 35 days and maximum power point (MPP) tracking at 85 degrees C for 1000 h, respectively. Starlike BD molecules possess an orderly stacking type by twisting acceptor unit, thus having a wide pi system and high hole mobility. The BD CsPbI3 perovskite solar cell (PSC) exhibits the champion efficiency of 19.19%, the highest performance for all-inorganic PSCs using dopant-free hole transport material. Meanwhile, a dense BD layer can inhibit ion migration, thus improving the device stability. image
关键词	all-inorganic perovskite dopant-free hole conductor high hole mobility ordered packing starlike molecule
资助者	National Natural Science Foundation of China ; Guangdong Science and Technology Program ; National Key Research and Development Program of China ; Research Grant Council of Hong Kong (RGC) ; International Training program for Young Talents of Guangdong Province ; Guangzhou Science and Technology Planning Project
DOI	10.1002/aenm.202303997
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; Guangdong Science and Technology Program[2020B121201003] ; Guangdong Science and Technology Program[2019ZT08L075] ; Guangdong Science and Technology Program[2019QN01L118] ; National Key Research and Development Program of China[2022YFB3803300] ; Research Grant Council of Hong Kong (RGC)[C4005-22Y] ; International Training program for Young Talents of Guangdong Province ; Guangzhou Science and Technology Planning Project[2023A04J1697] ; [U2001217]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001153344100001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183908
专题	中国科学院金属研究所
通讯作者	Lu, Xinhui; Yan, Keyou
作者单位	1.South China Univ Technol, Sch Environm & Energy, State Key Lab Luminescent Mat & Devices, Guangdong Prov Key Lab Solid Wastes Pollut Control, Guangzhou 510000, Peoples R China 2.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Natl Ctr Nanosci & Technol, Ctr Excellence Nanosci CAS, Key Lab Nanosyst & Hierarch Fabricat CAS, Beijing 100190, Peoples R China 5.Council Sci & Ind Res CSIR, Energy Ctr, POB 395, ZA-0001 Pretoria, South Africa
推荐引用方式 GB/T 7714	Duan, Chenghao,Zou, Feilin,Li, Shiang,et al. Dopant-free Starlike Molecular Hole Conductor with Ordered Packing for Durable all-Inorganic Perovskite Solar Cells[J]. ADVANCED ENERGY MATERIALS,2024:11.
APA	Duan, Chenghao.,Zou, Feilin.,Li, Shiang.,Zhu, Qiliang.,Li, Jiong.,...&Yan, Keyou.(2024).Dopant-free Starlike Molecular Hole Conductor with Ordered Packing for Durable all-Inorganic Perovskite Solar Cells.ADVANCED ENERGY MATERIALS,11.
MLA	Duan, Chenghao,et al."Dopant-free Starlike Molecular Hole Conductor with Ordered Packing for Durable all-Inorganic Perovskite Solar Cells".ADVANCED ENERGY MATERIALS (2024):11.