Dopant-free hole conductor with hybrid multisite passivation for perovskite solar cells

doi:10.1016/j.matlet.2022.132931

	Dopant-free hole conductor with hybrid multisite passivation for perovskite solar cells
	Zhao, Chundie 1; Kong, Fantai 1; Chen, Shuanghong 1; Peng, Yaole 1; Zhang, Jinxue 1; Ghadari, Rahim 2,3; Liu, Wenjun 1
刊名	MATERIALS LETTERS
	2022-11-01
卷号	326
关键词	Hole transporting material Hybrid multisite passivation Solar energy materials Organic Perovskite solar cell
ISSN号	0167-577X
DOI	10.1016/j.matlet.2022.132931
通讯作者	Kong, Fantai(kongfantai@163.com)
英文摘要	Polymer hole-transporting material (HTM) with multi-site anchors is an interesting idea for defect passivation in perovskite solar cells (PSC). In this work, a small molecular HTM coded as TPA-DN with hybrid multisite passivation, that is two chelated pyridine nitrogen atoms and carbonyl double anchor sites, is developed. Two nitrogen atoms with higher electronegativity in TPA-DN can chelate with uncoordinated lead in perovskite, and the electron cloud density of oxygen in carbonyl can be increased by introducing nitrogen in fluorene-9-one core. The hole mobility is 71% higher and the hole trap-density is 49% lower after introducing the hybrid multisite passivation strategy. Comparing with the analogue without chelated nitrogen atoms, TPA-DN causes the power conversion efficiency (PCE) increasing from 18.37% to 19.45% with increased short-circuit current density and open-circuit voltage, respectively. This work proves that hybrid multisite passivation is an effective strategy in the design of organic p-type semiconductors.
资助项目	CAS -Iranian Vice Presidency for Science and Technology Joint Research Project[116134KYSB20160130]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000861038900004
资助机构	CAS -Iranian Vice Presidency for Science and Technology Joint Research Project
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129143]
专题	中国科学院合肥物质科学研究院
通讯作者	Kong, Fantai
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Univ Tabriz, Fac Chem, Dept Organ & Biochem, Computat Chem Lab, Tabriz 5166616471, Iran
推荐引用方式 GB/T 7714	Zhao, Chundie,Kong, Fantai,Chen, Shuanghong,et al. Dopant-free hole conductor with hybrid multisite passivation for perovskite solar cells[J]. MATERIALS LETTERS,2022,326.
APA	Zhao, Chundie.,Kong, Fantai.,Chen, Shuanghong.,Peng, Yaole.,Zhang, Jinxue.,...&Liu, Wenjun.(2022).Dopant-free hole conductor with hybrid multisite passivation for perovskite solar cells.MATERIALS LETTERS,326.
MLA	Zhao, Chundie,et al."Dopant-free hole conductor with hybrid multisite passivation for perovskite solar cells".MATERIALS LETTERS 326(2022).