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Multicomponent Molecular Assembly of Fluorescent Organic Semiconductors Beyond Three Compounds
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-06-21 , DOI: 10.1002/adfm.202205092
Panpan Zhao 1 , Lulu Zhang 1 , Zhengong Meng 2 , Yilong Lei 1
Affiliation  

In contrast to unary assemblies comprising π-conjugated organic species, elaborate modulation of dimensions, polymorphisms, and compositions of multicomponent assembled architectures with two or more constituent materials has not yet been systematically studied. Herein, a combinatorial library of organic microcrystals made of four components via a solution-phase assembly route is reported. With the involvement of growth kinetics, four organic species with slight structural modifications can assemble into five unary assemblies, which may endow binary combinations with highly and partially structural miscibility. Consequently, a variety of binary alloyed assemblies and microscale heterostructures with tailorable dimensions, polymorphisms, and emission colors are realized by rational compositional and growth control. The effects of structural relations of binary combinations on their miscibility are systematically uncovered, that gives rise to these intricate microscale architectures as well as diverse energy transfer (ET) efficiencies. Highly efficient ET process in binary alloyed assemblies can be beneficial to steady-state photoluminescence anisotropy amplification. Benefiting from the information of binary combinations, white-light-emitting ternary microsheets can be modulated in a predictable manner. The present work uncovers the rational control of multicomponent microcrystals, which further stretches the boundaries of molecular self-assembly and may be used to achieve integrated optoelectronic properties, such as multicolor lasers and p–n junctions.

中文翻译:

三种化合物之外的荧光有机半导体的多组分分子组装

与包含 π 共轭有机物质的一元组装体相比,尚未系统地研究具有两种或多种组成材料的多组分组装结构的尺寸、多态性和组成的精细调制。本文报道了通过溶液相组装路线由四种组分组成的有机微晶组合库。在生长动力学的参与下,四种结构稍有改变的有机物种可以组装成五个一元组装体,这可能赋予二元组合高度和部分结构混溶性。因此,通过合理的成分和生长控制,可以实现具有可定制尺寸、多态性和发射颜色的各种二元合金组件和微尺度异质结构。系统地揭示了二元组合的结构关系对其混溶性的影响,从而产生了这些复杂的微尺度结构以及不同的能量转移 (ET) 效率。二元合金组件中的高效 ET 工艺有利于稳态光致发光各向异性放大。受益于二元组合的信息,可以以可预测的方式调制发白光的三元微片。目前的工作揭示了多组分微晶的合理控制,进一步扩展了分子自组装的边界,可用于实现集成的光电特性,例如多色激光器和 p-n 结。这产生了这些复杂的微尺度架构以及不同的能量转移 (ET) 效率。二元合金组件中的高效 ET 工艺有利于稳态光致发光各向异性放大。受益于二元组合的信息,可以以可预测的方式调制发白光的三元微片。目前的工作揭示了多组分微晶的合理控制,进一步扩展了分子自组装的边界,可用于实现集成的光电特性,例如多色激光器和 p-n 结。这产生了这些复杂的微尺度架构以及不同的能量转移 (ET) 效率。二元合金组件中的高效 ET 工艺有利于稳态光致发光各向异性放大。受益于二元组合的信息,可以以可预测的方式调制发白光的三元微片。目前的工作揭示了多组分微晶的合理控制,进一步扩展了分子自组装的边界,可用于实现集成的光电特性,例如多色激光器和 p-n 结。二元合金组件中的高效 ET 工艺有利于稳态光致发光各向异性放大。受益于二元组合的信息,可以以可预测的方式调制发白光的三元微片。目前的工作揭示了多组分微晶的合理控制,进一步扩展了分子自组装的边界,可用于实现集成的光电特性,例如多色激光器和 p-n 结。二元合金组件中的高效 ET 工艺有利于稳态光致发光各向异性放大。受益于二元组合的信息,可以以可预测的方式调制发白光的三元微片。目前的工作揭示了多组分微晶的合理控制,进一步扩展了分子自组装的边界,可用于实现集成的光电特性,例如多色激光器和 p-n 结。
更新日期:2022-06-21
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