Department of Chemistry, School of Science, Tianjin University, Tianjin, P. R. China.
Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, P. R. China.
Nat Commun. 2021 Mar 23;12(1):1838. doi: 10.1038/s41467-021-22060-z.
Multimetallic nanostructures can be synthesized by integrating up to seven or eight metallic elements into a single nanoparticle, which represent a great advance in developing complex multicomponent nanoparticle libraries. Contrary, organic micro- and nanoparticles beyond three π-conjugated components have not been explored because of the diversity and structural complexity of molecular assemblies. Here, we report a library of microparticles composed of an arbitrary combination of four luminescent organic semiconductors. We demonstrate that the composition and emission color of each domain as well as its spatial distribution can be rationally modulated. Unary, binary, ternary, and quaternary microparticles are thus realized in a predictable manner based on the miscibility of the components, resulting in mixed-composition phases or alloyed or phase separated heterostructures. This work reports a simple yet available synthetic methodology for rational modulation of organic multicomponent microparticles with complex architectures, which can be used to direct the design of functional microparticles.
多金属纳米结构可以通过将多达七种或八种金属元素整合到单个纳米粒子中来合成，这代表着开发复杂的多组分纳米粒子库取得了重大进展。相比之下，由于分子组装的多样性和结构复杂性，尚未探索出超过三个π共轭组分的有机微纳米粒子。在这里，我们报告了一种由任意四种发光有机半导体组成的微粒库。我们证明了每个域的组成和发射颜色及其空间分布可以合理地调节。因此，可以基于组件的混溶性以可预测的方式实现一元、二元、三元和四元微粒，从而产生混合组成相或合金或相分离的异质结构。这项工作报道了一种简单而可行的合成方法，用于合理调制具有复杂结构的有机多组分微粒，可以用于指导功能微粒的设计。
