含Pt（II）和Ag(I)中心的杂核配合物在高效发光电化学电池中的应用。

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-05-19 DOI:10.1021/acsami.4c22938

Ariadna Lázaro,Margarita Crespo,Piotr Pander,Fernando B Dias,Laura Rodríguez

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引用次数: 0

摘要

我们报道了从Pt(NCN)-C≡CR前体（R =芳基）衍生的新型离子异核Pt(II)-Ag(I)配合物的合成，其中Ag+离子与乙炔基团配位。光物理研究揭示了发射的复杂相互作用：Pt（NCN）单元的3MLCT和3LC态，R芳基的3LC态，以及固态中聚集的Pt(NCN)-X单元产生的3MMLCT态。这些配合物表现出650- 750nm范围内的光致发光，主要是由短Pt··Pt接触促成的3MMLCT态。利用配合物4c （R = phenanthryl）作为LEECs概念验证中的离子发射器，我们实现了4.1%的最大EQE和接近2000 cd m-2的亮度。这些结果代表了含有Pt（II）基磷光配合物的性能最高的LEECs之一，强调了它们在发光应用中的潜力。

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Heteronuclear Complexes Containing Pt(II) and Ag(I) Centers: Application to Efficient Light-Emitting Electrochemical Cells.

We report the synthesis of novel ionic heteronuclear Pt(II)-Ag(I) complexes derived from Pt(NCN)-C≡CR precursors (R = aryl), where Ag+ ions coordinate to the acetylene groups. The photophysical investigation reveals a complex interplay of emissions: 3MLCT and 3LC states from the Pt(NCN) units, 3LC emissions from the R aryl groups, and 3MMLCT emissions arising from aggregated Pt(NCN)-X units in the solid state. These complexes exhibit photoluminescence in the range of 650-750 nm, predominantly from 3MMLCT states facilitated by short Pt···Pt contacts. Utilizing complex 4c (R = phenanthryl) as the ionic emitter in proof-of-concept LEECs, we achieved a maximum EQE of 4.1% and a luminance of nearly 2000 cd m-2. These results represent one of the highest-performing LEECs incorporating Pt(II)-based phosphorescent complexes, underscoring their potential in light-emitting applications.

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.