Journal
APPLIED PHYSICS EXPRESS
Volume 16, Issue 4, Pages -Publisher
IOP Publishing Ltd
DOI: 10.35848/1882-0786/accd44
Keywords
solar cell; 2D; 3D perovskite heterostructure; templated growth; dual bar-coating method
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Researchers have achieved 2D/3D perovskite heterostructure solar cells with orientation-controlled 2D perovskites. Obliquely and horizontally-oriented 2D perovskites were fabricated by templated growth onto (200)/(112)-oriented MAPbI(3) and (110)-oriented MAPbI(2)Br, respectively. The obliquely oriented 2D perovskite showed excellent carrier transport properties, while the horizontally-oriented 2D perovskite inhibited carrier transport and significantly deteriorated solar cell performance. Furthermore, the 2D/3D heterostructure solar cell with obliquely oriented 2D perovskite demonstrated enhanced stability, contributing to the development of high-stability and high-performance 2D/3D heterostructure solar cells.
2D/3D perovskite heterostructure solar cells with orientation-controlled 2D perovskites were realized. The obliquely and horizontally-oriented Dion-Jacobson (DJ) 2D perovskites were fabricated by templated growth onto (200)/(112)-oriented MAPbI(3) and (110)-oriented MAPbI(2)Br, respectively. The obliquely oriented 2D perovskite exhibited excellent carrier transport properties, while the horizontally-oriented 2D perovskite inhibited carrier transport and drastically deteriorated solar cell performances. In addition, the 2D/3D heterostructure solar cell with obliquely oriented DJ 2D perovskite demonstrated enhanced stability. The excellent carrier transport properties of orientation-controlled 2D perovskite would contribute to the 2D/3D heterostructure solar cells with high stability and performance.
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