Induced Circularly Polarized Luminescence From 0D Quantum Dots by 2D Chiral Nanosheets

被引:0
|
作者
Xiao, Yuqi [1 ,2 ,3 ]
Shi, Aiyan [1 ,2 ,4 ]
Yang, Guojian [1 ,2 ,4 ]
Yu, Yang [5 ]
Nie, Quan [1 ,2 ,3 ]
Qi, Shuyan [6 ]
Xiang, Chaoyu [1 ,2 ]
Zhang, Ting [1 ,2 ]
机构
[1] Qianwan Inst CNITECH, Lab Adv Nanooptoelectron Mat & Devices, Ningbo 315336, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Engn Res Ctr Energy Optoelect Mat &, Lab Adv Nanooptoelectron Mat & Devices,Lab Optoele, Ningbo 315201, Peoples R China
[3] Univ Sci & Technol China, Hefei 230026, Peoples R China
[4] Zhejiang Univ, Innovat Ctr Yangtze River Delta, Smart Mat Architecture Res Lab, Jiaxing 314100, Peoples R China
[5] Jiaxing Nanhu Univ, Coll Adv Mat Engn, Jiaxing 314001, Peoples R China
[6] Chinese Acad Sci, Inst Biomed Engn, Ningbo Cixi Inst Biomed Engn, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China
基金
中国国家自然科学基金; 国家重点研发计划;
关键词
aqueous system; circularly polarized luminescence; nanosheets; quantum dots; supramolecular chirality; FULL-COLOR; AMPLIFICATION; NANOMATERIALS;
D O I
10.1002/smll.202404913
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Materials with circularly polarized luminescence (CPL) exhibit great application potential in biological scenes such as cell imaging, optical probes, etc. However, most developed materials are non-aqueous and toxic, which seriously restricts their compatibility with the life systems. Thus, it is necessary to explore a water-based CPL system with high biocompatibility so that to promote the biologic application process. Herein, a facile and efficient route to achieve the CPL properties of a functional aqueous solution is demonstrated by the combination of 0D quantum dots (QDs) and 2D chiral nanosheets. Benefited by the specific absorption ability of nanosheets for left/right-handed CPL, the QDs adsorbed onto the surface of nanosheets through hydrogen bond interactions showed apparent CPL features. In addition, this system has a good extensibility as the CPL property can be effectively regulated by changing the kind of emissive QDs. More importantly, this water-based nano-composite with facile fabrication process (one-step mixing) is suitable for the real applications, which is undoubtedly beneficial for the further progress of functional CPL materials. A novel water-based submicron-scale luminescent system with circularly polarized luminescence (CPL) has been designed and prepared, based on the combination of 0D quantum dots and 2D chiral nanosheets. Benefited by the specific absorption ability of nanosheets for left/right-handed CPL, the QDs adsorbed on the surface of nanosheets exhibited apparent CPL features. image
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页数:7
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