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Issue 3, 2016
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Highly phosphorescent platinum(II) emitters: photophysics, materials and biological applications

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Abstract

In recent years a blossoming interest in the synthesis, photophysics and application of phosphorescent Pt(II) complexes, particularly on their uses in bioimaging, photocatalysis and phosphorescent organic light-emitting diodes (OLEDs), has been witnessed. The superior performance of phosphorescent Pt(II) complexes in these applications is linked to their diverse spectroscopic and photophysical properties, which can be systematically modulated by appropriate choices of auxiliary ligands. Meanwhile, an important criterion for the practical application of phosphorescent metal complexes is their stability which is crucial for biological utilization and industrial OLED applications. Taking both the luminescence properties and stability into consideration, chelating ligands having rigid scaffolds and with strong σ-donor atoms are advantageous for the construction of highly robust phosphorescent Pt(II) complexes. The square-planar coordination geometry endows Pt(II) complexes with the intriguing spectroscopic and photophysical properties associated with their intermolecular interactions in both the ground and excited states. In this article, we discuss the design and synthesis of phosphorescent Pt(II) complexes with elaboration on the effects of ligands on the structure and luminescence properties. Based on their photophysical and emission properties, we intend to shed light on the great promise of highly robust phosphorescent Pt(II) emitters in an array of applications from molecular materials to biosensors.

Graphical abstract: Highly phosphorescent platinum(ii) emitters: photophysics, materials and biological applications

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Publication details

The article was received on 04 Oct 2015, accepted on 27 Nov 2015 and first published on 07 Jan 2016


Article type: Perspective
DOI: 10.1039/C5SC03766B
Citation: Chem. Sci., 2016,7, 1653-1673
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    Highly phosphorescent platinum(II) emitters: photophysics, materials and biological applications

    K. Li, G. S. Ming Tong, Q. Wan, G. Cheng, W. Tong, W. Ang, W. Kwong and C. Che, Chem. Sci., 2016, 7, 1653
    DOI: 10.1039/C5SC03766B

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