Nanoarray heterojunction and its efficient solar cells without negative impact of photogenerated electric field

doi:10.1038/s42005-021-00678-1

	Nanoarray heterojunction and its efficient solar cells without negative impact of photogenerated electric field
	Liu, Rong 2,3; Shen, Zhitao 4; Wan, Zhiyang 2,3; Zhu, Liangxin 2,3; Chen, Junwei 2; Dong, Chao 2; Chen, Wangwei 2,3; Cao, Wenbo 2,3; Chen, Bin 2; Yuan, Xiaogang 1,3
刊名	COMMUNICATIONS PHYSICS
	2021-08-05
卷号	4
ISSN号	2399-3650
DOI	10.1038/s42005-021-00678-1
通讯作者	Chen, Junwei(jwchen@issp.ac.cn) ; Chen, Chong(chongchen@henu.edu.cn) ; Wang, Mingtai(mtwang@ipp.ac.cn)
英文摘要	Efficient, stable and low-cost solar cells are being desired for the photovoltaic conversion of solar energy into electricity for sustainable energy production. Nanorod/nanowire arrays of narrow-bandgap semiconductors are the promising light-harvesters for photovoltaics because of their excellent optoelectrical properties. Here, the array of preferentially oriented antimony trisulfide (Sb2S3) single-crystalline nanorods is grown on polycrystalline titania (TiO2) film by a tiny-seed-assisted solution-processing strategy, offering an Sb2S3/TiO2 nanoarray heterojunction system on a large scale. It is demonstrated that the Sb2S3 nanorod growth follows a tiny-seed-governed orientation-competing-epitaxial nucleation/growth mechanism. Using a conjugated polymer hole transporting layer on the heterojunction, we achieve a power conversion efficiency of 5.70% in the stable hybrid solar cell with a preferred p-type/intrinsic/n-type architecture featuring effectively straightforward charge transport channels and no negative impact of photogenerated electric field on device performance. An architecture-dependent charge distribution model is proposed to understand the unique photovoltaic behavior. Photovoltaic devices require reliable and scalable growth methods to produce the constituent materials. Here, the authors report a tiny-seed-assisted solution processing strategy to grow Sb2S3/TiO2 nanoarray heterojunction of which the hybrid solar cell without negative impact of photogenerated electric field exhibits a power efficiency of 5.70%.
资助项目	National Natural Science Foundation of China[11474286] ; National Natural Science Foundation of China[61704048] ; National Natural Science Foundation of China[11974353] ; National Natural Science Foundation of China[52002373] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP004] ; HFIPS President Foundation[YZJJZX202018] ; Program for Science and Technology Innovation Talents in Universities of Henan Province[19HASTIT049]
WOS关键词	BULK HETEROJUNCTIONS ; ENHANCED ABSORPTION ; NANOWIRES ; LIMIT
WOS研究方向	Physics
语种	英语
出版者	NATURE PORTFOLIO
WOS记录号	WOS:000684613800003
资助机构	National Natural Science Foundation of China ; Collaborative Innovation Program of Hefei Science Center, CAS ; HFIPS President Foundation ; Program for Science and Technology Innovation Talents in Universities of Henan Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124309]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Junwei; Chen, Chong; Wang, Mingtai
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Hefei, Peoples R China 3.Univ Sci & Technol China, Hefei, Peoples R China 4.Henan Univ, Henan Key Lab Photovolta Mat, Kaifeng, Peoples R China
推荐引用方式 GB/T 7714	Liu, Rong,Shen, Zhitao,Wan, Zhiyang,et al. Nanoarray heterojunction and its efficient solar cells without negative impact of photogenerated electric field[J]. COMMUNICATIONS PHYSICS,2021,4.
APA	Liu, Rong.,Shen, Zhitao.,Wan, Zhiyang.,Zhu, Liangxin.,Chen, Junwei.,...&Wang, Mingtai.(2021).Nanoarray heterojunction and its efficient solar cells without negative impact of photogenerated electric field.COMMUNICATIONS PHYSICS,4.
MLA	Liu, Rong,et al."Nanoarray heterojunction and its efficient solar cells without negative impact of photogenerated electric field".COMMUNICATIONS PHYSICS 4(2021).