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
	2020
发表期刊	Advanced Energy Materials
ISSN	1614-6832
卷号	10 期号:43 页码:10
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.
DOI	10.1002/aenm.202002004
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收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	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.

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