Aggregation-induced Phosphorescence Pt(II) Complexes: Molecular Design Strategies, Mechanistic Insights and Applications

Abstract

Aggregation-induced phosphorescence (AIP) Pt(II) complexes have emerged as an important category of aggregation-induced emission (AIE) materials, distinguished by their efficient phosphorescence in the aggregated state. Here, we present a systematic review of recent advances in AIP Pt(II) complexes, focusing on three key aspects: molecular design strategies, mechanistic insights, and emerging applications. First, we outline molecular construction principles based on ligand structure and coordination modes that underpin the development of AIP Pt(II) complexes. We then discuss the mechanistic understanding of AIP, highlighting three major factors: restriction of molecular motion, restriction of excited-state geometry mechanism, and the oxygen-shielding effect. Furthermore, we summarize and critically discuss recent advancements in the application of AIP Pt(II) complexes across diverse fields, including biological imaging, electroluminescent devices, and mechanochromic materials. Finally, we explore future prospects for the expansion of AIP-active Pt(II) complexes into broader scientific and technological fields.

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Article information

Article type
Review Article
Submitted
07 May 2025
Accepted
26 May 2025
First published
30 May 2025

J. Mater. Chem. C, 2025, Accepted Manuscript

Aggregation-induced Phosphorescence Pt(II) Complexes: Molecular Design Strategies, Mechanistic Insights and Applications

L. Liu, X. Wang, H. Gao, T. Wu, M. Li, J. Wang, X. Zhao, X. Zheng, G. Liu, Z. Xu, Y. C. Fan, Z. Zhao and Z. Jiang, J. Mater. Chem. C, 2025, Accepted Manuscript , DOI: 10.1039/D5TC01828E

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