Circularly polarized luminescence from AIEgens

Circularly polarized luminescence (CPL) based on aggregation-induced emission luminogens (AIEgens) has received increasing attention owing to the increase of applications to generate CPL devices and biologically active probes. CPL-active materials fabricated from AIEgens exhibit higher photoluminesc...

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Published inJournal of materials chemistry. C, Materials for optical and electronic devices Vol. 8; no. 1; pp. 3284 - 331
Main Authors Song, Fengyan, Zhao, Zheng, Liu, Zhiyang, Lam, Jacky W. Y, Tang, Ben Zhong
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 01.01.2020
Subjects
Agglomeration
Circular polarization
Electroluminescence
Luminescence
Photoluminescence
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Summary:Circularly polarized luminescence (CPL) based on aggregation-induced emission luminogens (AIEgens) has received increasing attention owing to the increase of applications to generate CPL devices and biologically active probes. CPL-active materials fabricated from AIEgens exhibit higher photoluminescence quantum yields and larger dissymmetry factors in the solid state in comparison with single molecules in solution. We called the phenomenon of enhanced CPL in an aggregated state aggregation-induced circularly polarized luminescence (AICPL). This review highlights recent research in the CPL generation of AIEgens from (macro)molecular luminogens and supramolecular assemblies based on the AIE mechanism of restriction of intramolecular motion. In addition, some cases in which CPL-active AIEgens have enabled advancement in stimulus response materials and application in CPL devices, especially circularly polarized electroluminescence. Thus, CPL-active AIEgens are highly promising candidates for a wide range of technologically oriented multidisciplinary fields. This work systematically summarizes recent advances in circularly polarized luminescence (CPL) based on aggregation-induced emission luminogens (AIEgens).
Bibliography:Dr Fengyan Song received his bachelor's degree in 2009 from Shandong Agricultural University and obtained his PhD degree under the supervision of Prof. Yixiang Cheng from Nanjing University in 2014. He is currently a post-doctoral fellow under the guidance of Prof. Ben Zhong Tang at The Hong Kong University of Science and Technology. His research interests focus on the design and synthesis of chiral functional materials and the exploration of their circularly polarized luminescence properties.
Jacky W. Y. Lam received his PhD degree from HKUST in 2003 under the supervision of Prof. Tang. He is currently a research associate professor in the Department of Chemistry at HKUST. His research interests include macromolecular chemistry and materials science. Lam has published >580 papers. His publications have been cited >37 000 times with an h-index of 89. He has been listed by Thomson Reuters and Clarivate Analytics as a Highly Cited Researcher in the area of Chemistry in 2014-2018.
Dr Zheng Zhao received his bachelor's degree in 2009 from Henan University and earned his PhD degree in 2014 from the Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences, under the supervision of Prof. Xike Gao and Prof. Daoben Zhu. After a short stay in SIOC to work as a research assistant, he became a post-doctoral fellow at The Hong Kong University of Science and Technology (2015-2019) under the supervision of Prof. Ben Zhong Tang. His research focuses on the synthesis, mechanism and application of luminescent materials with aggregation-induced emission properties.
Prof. Ben Zhong Tang received his bachelor's and PhD degrees from the South China University of Technology and Kyoto University in 1982 and 1988, respectively. He conducted his postdoctoral work at the University of Toronto in 1989-1994. He joined HKUST in 1994 and was promoted to chair professor in 2008 and Stephen K. C. Cheong Professor of Science in 2013. He was elected to the Chinese Academy of Sciences in 2009. His research interests include the exploration of new advanced materials, new luminescence processes, fluorescent bioprobes, and new polymerization reactions.
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ISSN:2050-7526
2050-7534
DOI:10.1039/c9tc07022b