Li Shengnan, Yang Yanrui, Song Jiahao, Meng Xianglin, Bai Cuibing, Wei Biao, Ma Fei, Zhang Lin
Department of Chemistry & Materials Engineering, Fuyang Normal University, Fuyang, 236037, China.
Discov Nano. 2024 Nov 12;19(1):180. doi: 10.1186/s11671-024-04145-y.
Due to their excellent properties, blue CsPbBr quantum dots show great promise for full-colour display and lighting applications. This study used acetonitrile, a polar solvent, to post-treat CsPbBr quantum dots, resulting in a blue shift to 453 nm. To enhance stability, these quantum dots were encapsulated within the pore structure of mesoporous silica. A flexible luminescent fiber material was prepared using poly (lactic acid) (PLA) as the substrate, demonstrating improved hydrophobicity and stable optical properties. The material exhibited a contact angle of 99.7° and maintained 82.2% of its fluorescence intensity after 30 days at room temperature. These findings highlight its significant potential for optical applications.
由于其优异的性能，蓝色CsPbBr量子点在全彩显示和照明应用方面展现出巨大潜力。本研究使用极性溶剂乙腈对CsPbBr量子点进行后处理，使其蓝移至453纳米。为提高稳定性，这些量子点被封装在介孔二氧化硅的孔结构内。以聚乳酸（PLA）为基材制备了一种柔性发光纤维材料，其疏水性得到改善，光学性能稳定。该材料的接触角为99.7°，在室温下放置30天后仍保持其荧光强度的82.2%。这些发现突出了其在光学应用方面的巨大潜力。
