Room Temperature In-Situ Synthesis of Inorganic Lead Halide Perovskite Nanocrystals Sol Using Ultraviolet Polymerized Acrylic Monomers as Solvent and Their Composites with High Stability

Applied Sciences

Jun Cheng¹  Hua Tong¹  Ludan Zhu¹  Huidan Zeng¹  Long Chen¹  Qiling Cheng¹  Shuanglong Yuan¹  Chuanqi Liu¹ 

[1] Institute of Inorganic Materials, East China University of Science and Technology, Shanghai 200237, China;

关键词: perovskite nanocrystals;    acrylic monomers;    in-situ synthesis;   

DOI  :  10.3390/app10093325

来源: DOAJ

【 摘 要 】

As a kind of promising optoelectrical material, all-inorganic perovskite nanocrystals CsPbX₃ (X = Cl, Br, I) have attracted much attention, due to their excellent optoelectrical characteristics, in recent years. However, their synthesis approaches require rigorous conditions, including high temperature, eco-unfriendly solvent or complex post-synthesis process. Herein, to overcome these issues, we reported a novel facile room temperature in-situ strategy using ultraviolet polymerizable acrylic monomer as solvent to synthesis CsPbX₃ nanocrystals without a complex post-synthesis process. In this strategy, adequate soluble precursors of Cs, Pb and Br and reaction terminating agent 3-aminopropyltriethoxysilane (APTES) were used. The obtained CsPbBr₃ nanocrystals showed a high photoluminescence quantum yields (PLQY) of 87.5%. The corresponding polymer composites, by adding light initiator and oligomer under ultraviolet light radiation, performed excellent stability in light, air, moisture and high temperature. The reaction process and the effect of the reaction terminating agent have been investigated in detail. This strategy is a universal one for synthesizing CsPbX₃ nanocrystals covering visible light range by introducing HCl and ZnI₂.

【 授权许可】

Unknown