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Circularly polarized light emission and detection by chiral inorganic semiconductors
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作者 Zha Li Wancai Li +6 位作者 Dehui Li Wei Tang Huageng Liang Huaibing Song Chao Chen Liang Gao Jiang Tang 《Frontiers of Optoelectronics》 EI CSCD 2024年第2期43-49,共7页
Chiral inorganic semiconductors with high dissymmetric factor are highly desirable,but it is generally difficult to induce chiral structure in inorganic semiconductors because of their structure rigidity and symmetry.... Chiral inorganic semiconductors with high dissymmetric factor are highly desirable,but it is generally difficult to induce chiral structure in inorganic semiconductors because of their structure rigidity and symmetry.In this study,we introduced chiral ZnO film as hard template to transfer chirality to CsPbBr_(3) film and PbS quantum dots(QDs)for circularly polarized light(CPL)emission and detection,respectively.The prepared CsPbBr_(3)/ZnO thin film exhibited CPL emission at 520 nm and the PbS QDs/ZnO film realized CPL detection at 780 nm,featuring high dissymmetric factor up to around 0.4.The electron transition based mechanism is responsible for chirality transfer. 展开更多
关键词 High dissymmetric factor Circularly polarized light emission SEMICONDUCTOR Hard template chirality
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Preparation of single-handed helical phenolic resin nanoflbers using a supramolecular templating method 被引量:1
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作者 Li-Qing Ma Hao Chen +2 位作者 Yong-Min Guo Bao-Zong Li Yi Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2014年第10期1363-1366,共4页
Single-handed helical phenolic resin nanofibers were synthesized through a supramolecular templating approach using the supramolecular self-assemblies of a pair of chiral low-molecular-weight amphiphiles as the templa... Single-handed helical phenolic resin nanofibers were synthesized through a supramolecular templating approach using the supramolecular self-assemblies of a pair of chiral low-molecular-weight amphiphiles as the templates and 2,4-dihydroxybenzoic acid and formaldehyde as the precursors.The phenolic resin nanofibers were characterized using field-emission scanning electron microscopy,transmission electron microscopy and diffused reflection circular dichroism.The results indicated that the chirality of the supramolecular self-assemblies was successfully transferred to the phenolic resin nanofibers.The left- and right-handed helical phenolic resin nanofibers exhibited opposite optical activity. 展开更多
关键词 Supramolecular template chirality Phenolic resins Nanofibers
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