ICCAS OpenIR
Boosting the circularly polarized luminescence of small organic molecules via multi-dimensional morphology control
Ma, Kai; Chen, Wenjie; Jiao, Tifeng; Jin, Xue; Sang, Yutao; Yang, Dong; Zhou, Jin; Liu, Minghua; Duan, Pengfei
2019-07-28
Source PublicationCHEMICAL SCIENCE
ISSN2041-6520
Volume10Issue:28Pages:6821-6827
AbstractAchieving a higher dissymmetry factor is a crucial issue in developing circularly polarized luminescence (CPL) materials. Here, by tailoring the solvent composition and the morphology of the same chiral emissive small molecules (R- or S-SPAn), circularly polarized emission with a boosted dissymmetry factor (two orders) was realized. It was found that by regulating the water fraction in the mixed THF/H2O, we were able to achieve kinetic control over association of chiral emissive R- or S-SPAn into various nanostructures with 0D nanospheres, 2D nanoflakes and 3D stacked nanoflakes. These nanostructures are all CPL active. Remarkably, the dissymmetry factors of the nanostructures were significantly enhanced compared to those of the molecules and further boosted in different morphologies, from similar to 10(-4) (0D nanospheres) to 10(-3) (2D flake) to similar to 10(-2) (3D nanoflakes). The enlarged g(lum) value could be assigned to a good packing induced strong luminescence of an excimer. This strategy provides an efficient way to fabricate higher dissymmetry factor CPL organic nanomaterials by only changing the supramolecular architectures while using the same chiral small molecules.
DOI10.1039/c9sc01577a
Indexed BySCI
Language英语
WOS IDWOS:000476545100005
EI Accession Number2041-6539
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82720
Collection中国科学院化学研究所
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Ma, Kai,Chen, Wenjie,Jiao, Tifeng,et al. Boosting the circularly polarized luminescence of small organic molecules via multi-dimensional morphology control[J]. CHEMICAL SCIENCE,2019,10(28):6821-6827.
APA Ma, Kai.,Chen, Wenjie.,Jiao, Tifeng.,Jin, Xue.,Sang, Yutao.,...&Duan, Pengfei.(2019).Boosting the circularly polarized luminescence of small organic molecules via multi-dimensional morphology control.CHEMICAL SCIENCE,10(28),6821-6827.
MLA Ma, Kai,et al."Boosting the circularly polarized luminescence of small organic molecules via multi-dimensional morphology control".CHEMICAL SCIENCE 10.28(2019):6821-6827.
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