Journal
NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-022-28070-9
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Funding
- National Natural Science Foundation of China [62075102, 22075149, 21772095, 61875090, 91833306]
- Jiangsu Specially-Appointed Professor Plan
- Six Talent Plan of Jiangsu Province [XCL-049]
- Key giant project of Jiangsu Educational Committee [19KJA180005]
- fifth 333 project of Jiangsu Province of China [BRA2019080]
- 1311 Talents Program of Nanjing University of Posts and Telecommunications (Dingshan)
- Natural Science Fund for Colleges and Universities in Jiangsu Province [20KJB430001]
- China Postdoctoral Science Foundation [2018M642284]
- Nanjing University of Posts and Telecommunications Start-up Fund (NUPTSF) [NY220151, NY219007, NY219160, NY217140]
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The authors developed a strategy to achieve multicolor circularly polarized organic afterglow (CPOA) by inserting a chirality center into a non-conjugated organic cluster. This approach enabled highly efficient and significantly tuned CPOA emissions from blue to yellowish-green with dissymmetry factor over 2.3 x 10(-3) and lifetime up to 587 ms under different excitation wavelengths, showcasing the potential for diverse applications in CPL and RTP materials.
Circularly polarized organic afterglow (CPOA) with both long-lived room-temperature phosphorescence and circularly polarized luminescence is attracting great interest, but the development of multicolor-tunable CPOA in a single-component material remains challenging. Here, the authors report a strategy to achieve multicolor CPOA through chiral clusterization by inserting a chirality center into a non-conjugated organic cluster. Circularly polarized organic afterglow (CPOA) with both long-lived room-temperature phosphorescence (RTP) and circularly polarized luminescence (CPL) is currently attracting great interest, but the development of multicolor-tunable CPOA in a single-component material remains a formidable challenge. Here, we report an efficient strategy to achieve multicolor CPOA molecules through chiral clusterization by implanting chirality center into non-conjugated organic cluster. Owing to excitation-dependent emission of clusters, highly efficient and significantly tuned CPOA emissions from blue to yellowish-green with dissymmetry factor over 2.3 x 10(-3) and lifetime up to 587 ms are observed under different excitation wavelengths. With the distinguished color-tunable CPOA, the multicolor CPL displays and visual RTP detection of ultraviolent light wavelength are successfully constructed. These results not only provide a new paradigm for realization of multicolor-tunable CPOA materials in single-component molecular systems, but also offer new opportunities for expanding the applicability of CPL and RTP materials for diversified applications.
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