Optimizing Printed Quasi‐2D Luminescent Perovskite Films via Delaminated Metal–Organic Framework Modulation
Abstract
AbstractMicroelectronic printing technology has recently emerged as a key approach in advancing pixel‐array perovskite films, particularly quasi‐2D perovskite films, to meet current scientific and technological demands. However, its further development remains hindered by the uncontrollable crystallization of perovskite during the printing process. Herein, a novel in situ heterogeneous nucleation growth approach for obtaining quasi‐2D perovskite films is demonstrated, utilizing delaminated metal–organic frameworks (i.e., layered Cd‐MOF) with an ordered structure as modulators. The inosculation of phenylethylammonium (PEA+) with layered Cd‐MOF serves as crystal nuclei, facilitating heterogeneous crystal nucleation and growth while regulating the distribution of the n‐phase. Moreover, the intercalation of the layered Cd‐MOF alleviates rigid stress, thereby eliminating defects in the printed films. The resulting quasi‐2D perovskite films exhibit an impressive photoluminescence quantum yield of 37.40% along with exceptional luminescent stability, making them promising candidates for various optoelectronic applications. Overall, this study highlights the significant potential of MOF‐assisted synthesis in advancing high‐performance perovskite materials through microelectronic printing technology, offering a promising pathway for the development of future optoelectronic devices.
Article Details
Authors (14)
Shanjing Liu
College of Electronic Information and Optical Engineering Nankai University Tianjin 300350 China
Han Fang
State Key Laboratory of Virology and Biosafety, College of Life Sciences, Frontier Science Center for Immunology and Metabolism, Wuhan University
Yahui Su
Institute of Photoelectronic Thin Film Devices and Technology Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Nankai University Tianjin 300350 China
Bo Zhang
Xing‐Wang Li
School of Materials Science and Engineering National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule‐Based Material Chemistry Nankai University Tianjin 300350 China
Miao Yan
Department of Orthopaedic Surgery, Zhongshan Hospital
Peiran Du
Institute of Photoelectronic Thin Film Devices and Technology Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Nankai University Tianjin 300350 China
Ying Cheng
Institute of Biomedical Research, Yunnan University
Hongkun Cai
Department of Micro‐Nano Electronics College of Electronic Information and Optical Engineering Nankai University Tianjin P. R. China
Jian Ni
Jianjun Zhang
Ze Chang
School of Materials Science and Engineering & State Key Laboratory of Elemento-Organic Chemistry
Mei‐Hui Yu
School of Materials Science and Engineering National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule‐Based Material Chemistry Nankai University Tianjin 300350 China
Juan Li