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Phosphorescent Neutral Iridium (III) Complexes for Organic Light-Emitting Diodes


The development of transition metal complexes for application in light-emitting devices is currently attracting significant research interest. Among phosphorescent emitters, those involving iridium (III) complexes have proven to be exceedingly useful due to their relatively short triplet lifetime and high phosphorescence quantum yields. The emission wavelength of iridium (III) complexes significantly depends on the ligands, and changing the electronic nature and the position of the ligand substituents can control the properties of the ligands. In this chapter, we discuss recent developments of phosphorescent transition metal complexes for organic light-emitting diode applications focusing solely on the development of iridium metal complexes.

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(Reproduced with permission from Ref. [93]. Copyright 2013 Elsevier)

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(Reproduced with permission from Ref. [6]. Copyright 2001 American Chemistry Society)

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(Reproduced with permission from Ref. [11]. Copyright 2011 Wiley–VCH-Verlag)

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(Reproduced with permission from Ref. [153,154,155]. Copyright 2006 American Chemical Society, and Wiley–VCH-Verlag, respectively)


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This work was supported by the Swiss Federal Office for Energy, and the European Commission H2020-ICT-2014-1, SOLEDLIGHT project, Grant agreement No: 643791 and the Swiss State Secretariat for Education, Research and Innovation (SERI).

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Correspondence to Mohammad Khaja Nazeeruddin.

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This article is part of the topical collection “Photoluminescent Materials and Electroluminescent Devices”: edited by Nicola Amaroli and Henk Bolink.

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Bin Mohd Yusoff, A.R., Huckaba, A.J. & Nazeeruddin, M.K. Phosphorescent Neutral Iridium (III) Complexes for Organic Light-Emitting Diodes. Top Curr Chem (Z) 375, 39 (2017).

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  • Organic light-emitting diodes
  • Fluorescence
  • Phosphorescence
  • Iridium
  • Triplet emitters
  • Transition metal complexes