Multicomponent Molecular Assembly of Fluorescent Organic Semiconductors Beyond Three Compounds

Panpan Zhao; Lulu Zhang; Zhengong MengYilong Lei

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Multicomponent Molecular Assembly of Fluorescent Organic Semiconductors Beyond Three Compounds

机译：Multicomponent Molecular Assembly of Fluorescent Organic Semiconductors Beyond Three Compounds

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In contrast to unary assemblies comprising π-conjugated organic species,elaborate modulation of dimensions, polymorphisms, and compositionsof multicomponent assembled architectures with two or more constituentmaterials has not yet been systematically studied. Herein, a combinatoriallibrary of organic microcrystals made of four components via a solutionphaseassembly route is reported. With the involvement of growth kinetics,four organic species with slight structural modifications can assemble intofive unary assemblies, which may endow binary combinations with highlyand partially structural miscibility. Consequently, a variety of binary alloyedassemblies and microscale heterostructures with tailorable dimensions, polymorphisms,and emission colors are realized by rational compositional andgrowth control. The effects of structural relations of binary combinations ontheir miscibility are systematically uncovered, that gives rise to these intricatemicroscale architectures as well as diverse energy transfer (ET) efficiencies.Highly efficient ET process in binary alloyed assemblies can be beneficial tosteady-state photoluminescence anisotropy amplification. Benefiting from theinformation of binary combinations, white-light-emitting ternary microsheetscan be modulated in a predictable manner. The present work uncovers therational control of multicomponent microcrystals, which further stretches theboundaries of molecular self-assembly and may be used to achieve integratedoptoelectronic properties, such as multicolor lasers and p–n junctions.

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来源
《Advanced functional materials》 |2022年第35期|2205092.1-2205092.12|共12页
作者
Panpan Zhao; Lulu Zhang; Zhengong MengYilong Lei;
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作者单位

Department of ChemistrySchool of ScienceTianjin UniversityTianjin 300072, P. R. China;

Key Laboratory of Flexible Electronics and Institute of AdvancedMaterialsNanjing Tech UniversityNanjing 211800, P. R. China;

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正文语种英语
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energy transfer; microscale heterostructures; multicomponent organic assemblies; organic alloys; structural miscibility; white-light emission;

Multicomponent Molecular Assembly of Fluorescent Organic Semiconductors Beyond Three Compounds

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