Fabrication Strategy for Efficient 2D/3D Perovskite Solar Cells Enabled by Diffusion Passivation and Strain Compensation

doi:10.1002/aenm.202002004

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	Fabrication Strategy for Efficient 2D/3D Perovskite Solar Cells Enabled by Diffusion Passivation and Strain Compensation
	C. L. Zhang,S. H. Wu,L. M. Tao,G. M. Arumugam,C. Liu,Z. Wang,S. S. Zhu,Y. Z. Yang,J. Lin,X. Y. Liu,R. E. I. Schropp and Y. H. Mai
刊名	Advanced Energy Materials
	2020
卷号	10 期号:43 页码:10
ISSN号	1614-6832
DOI	10.1002/aenm.202002004
英文摘要	Lattice matching and passivation are generally seen as the main beneficial effects in 2D/3D perovskite heterostructured solar cells, but the understanding of the mechanisms involved is still incomplete. In this work, it is shown that 2D/3D heterostructure are unstable under common thermal processing conditions, caused by the lattice expansion of strained 2D perovskite. Therefore an innovative fabrication technology involving a compressively strained PEA(2)PbI(4)layer is proposed to compensate the internal tensile strain and stabilize the 2D/3D heterostructure. Moreover, a small amount of PEA(+)diffusing into the grain boundaries of 3D perovskite forms 2D perovskite and passivates the defects there. Combining the effects of strain compensation and diffusion passivation, the stabilized 2D/3D perovskite solar cells deliver a reproducible and robust laboratory power conversion efficiency (PCE) of 21.31% for the p-i-n type devices, along with a highV(OC)of 1.18 V. A certified PCE of 20.22% is confirmed by an independent national metrology institute.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64518]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C. L. Zhang,S. H. Wu,L. M. Tao,G. M. Arumugam,C. Liu,Z. Wang,S. S. Zhu,Y. Z. Yang,J. Lin,X. Y. Liu,R. E. I. Schropp and Y. H. Mai. Fabrication Strategy for Efficient 2D/3D Perovskite Solar Cells Enabled by Diffusion Passivation and Strain Compensation[J]. Advanced Energy Materials,2020,10(43):10.
APA	C. L. Zhang,S. H. Wu,L. M. Tao,G. M. Arumugam,C. Liu,Z. Wang,S. S. Zhu,Y. Z. Yang,J. Lin,X. Y. Liu,R. E. I. Schropp and Y. H. Mai.(2020).Fabrication Strategy for Efficient 2D/3D Perovskite Solar Cells Enabled by Diffusion Passivation and Strain Compensation.Advanced Energy Materials,10(43),10.
MLA	C. L. Zhang,S. H. Wu,L. M. Tao,G. M. Arumugam,C. Liu,Z. Wang,S. S. Zhu,Y. Z. Yang,J. Lin,X. Y. Liu,R. E. I. Schropp and Y. H. Mai."Fabrication Strategy for Efficient 2D/3D Perovskite Solar Cells Enabled by Diffusion Passivation and Strain Compensation".Advanced Energy Materials 10.43(2020):10.