Designing luminophores bright in both isolate species and aggregate states is of great importance in many emerging cutting‐edge applications. However, the conventional luminophores either emit in isolate species but quench in aggregate state or emit in aggregate state but darken in isolate species. Here we demonstrate that the precise regulation of noncovalent interactions can realize luminophores bright in both isolate species and aggregate states. It is firstly discovered that the intra‐cluster interaction enhances the emission of atomically precise Au25(pMBA)18 (pMBA = 4‐mercaptobenzoic acid), a nanoscale luminophore, while the inter‐cluster interaction quenches the emission. The emission enhancing strategies are then well‐designed by both introducing exogenous substances to block inter‐cluster interaction and surface manipulation of Au25(pMBA)18 at the molecular level to enhance intra‐cluster interaction, opening new possibilities to controllably enhance the luminophore's photoluminescence in both isolate species and aggregate states in different phases including aqueous solution, solid state and organic solvents.

中文翻译：

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非共价相互作用引导金纳米团簇在分离物种和聚集状态下的精确光致发光调控

在许多新兴的尖端应用中，设计在孤立物种和聚集态下都明亮的发光体非常重要。然而，传统的发光体要么以孤立的物质发光，但以聚集状态淬灭，要么以聚集状态发光，但以孤立的物质变暗。在这里，我们证明了非共价相互作用的精确调节可以实现孤立物种和聚集状态下明亮的发光体。首次发现簇内相互作用增强了纳米级发光体 Au25(pMBA)18 (pMBA = 4-巯基苯甲酸)的发射，而簇间相互作用则淬灭了发射。然后通过引入外源物质来阻断簇间相互作用和在分子水平上对 Au25(pMBA)18 进行表面操作以增强簇内相互作用来精心设计发射增强策略，从而为可控增强发光团的光致发光开辟了新的可能性。两者都可以在不同相（包括水溶液、固态和有机溶剂）中分离物质和聚集态。