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Highly Luminescent and Stable Green Quasi‐2D Perovskite‐Embedded Polymer Sheets by Inkjet Printing
Author(s) -
Jia Siqi,
Li Guangyu,
Liu Pai,
Cai Rui,
Tang Haodong,
Xu Bing,
Wang Zhaojin,
Wu Zhenghui,
Wang Kai,
Sun Xiao Wei
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201910817
Subject(s) - materials science , perovskite (structure) , luminescence , polymer , fabrication , quantum yield , abrasion (mechanical) , composite number , chemical engineering , moisture , nanotechnology , composite material , optoelectronics , optics , fluorescence , engineering , medicine , alternative medicine , physics , pathology
Perovskite materials serve as promising candidates for display and lighting due to their excellent optical properties, including tunable bandgaps and efficient luminescence. However, their efficiency and stability must be improved for further application. In this work, quasi‐two‐dimensional (quasi‐2D) perovskites embedded in different polymers are prepared by inkjet printing to construct any luminescent patterns/pictures on the polymer substrates. The optimized quantum yield reaches over 65% by polyvinyl‐chloride‐based quasi‐2D perovskite composites. In addition, as‐fabricated perovskite−polymer composites with patterns show excellent resistance to abrasion, moisture, light irradiation, and chemical erosion by various solvents. Both quantum yield and lifetime are superior to those reported to date. These achievements are attributed to the introduction of the PEA + cations to improve the luminance and stability of perovskite. This patterned composite can be useful for color‐conversion films with low cost and large‐scale fabrication.