Enhanced 1.54-μm photo- and electroluminescence based on a perfluorinated Er(Ⅲ) complex utilizing an iridium(Ⅲ) complex as a sensitizer

Hong-Fei Li; Xiao-Qi Liu; Chen Lyu; Jelena Gorbaciova; Li-Li Wen; Guo-Gang Shan; Peter. B. Wyatt; Huan-Qing Ye; William P. Gillin

doi:10.1038/s41377-020-0266-3

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Enhanced 1.54-μm photo- and electroluminescence based on a perfluorinated Er(Ⅲ) complex utilizing an iridium(Ⅲ) complex as a sensitizer

Article

- Enhanced 1.54-μm photo- and electroluminescence based on a perfluorinated Er(Ⅲ) complex utilizing an iridium(Ⅲ) complex as a sensitizer
- Light: Science & Applications Vol. 9, Issue 2, Pages: 300-309(2020)
- Affiliations：
  
  1.Materials Research Institute and School of Physics and Astronomy, Queen Mary University of London, Mile End Road, E1 4NS London, UK
  2.Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
  3.Materials Research Institute and School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, E1 4NS London, UK
  4.Chromosol Ltd, The Walbrook Building, 25 Walbrook, London EC4N 8A, UK
- Author bio：
  
  Guo-Gang Shan (shangg187@nenu.edu.cn)
  Huan-Qing Ye (h.ye@qmul.ac.uk)
  William P. Gillin (w.gillin@qmul.ac.uk)
- Funds：
- DOI：10.1038/s41377-020-0266-3
  CLC：
- Published：2020，
  
  Published Online：04 March 2020，
  
  Received：13 November 2019，
  
  Revised：31 January 2020，
  
  Accepted：18 February 2020
- Accepted：
Scan QR Code
Li, H. F. et al. Enhanced 1.54-μm photo- and electroluminescence based on a perfluorinated Er(Ⅲ) complex utilizing an iridium(Ⅲ) complex as a sensitizer. Light: Science & Applications, 9, 300-309 (2020).
DOI：

Li, H. F. et al. Enhanced 1.54-μm photo- and electroluminescence based on a perfluorinated Er(Ⅲ) complex utilizing an iridium(Ⅲ) complex as a sensitizer. Light: Science & Applications, 9, 300-309 (2020). DOI： 10.1038/s41377-020-0266-3.

摘要

Abstract

Advanced 1.5-μm emitting materials that can be used to fabricate electrically driven light-emitting devices have the potential for developing cost-effective light sources for integrated silicon photonics. Sensitized erbium (Er

) in organic materials can give bright 1.5-μm luminescence and provide a route for realizing 1.5-μm organic light emitting diodes (OLEDs). However

the Er

electroluminescence (EL) intensity needs to be further improved for device applications. Herein

an efficient 1.5-μm OLED made from a sensitized organic Er

co-doped system is realized

where a "traditional" organic phosphorescent molecule with minimal triplet–triplet annihilation is used as a chromophore sensitizer. The chromophore provides efficient sensitization to a co-doped organic Er

complex with a perfluorinated-ligand shell. The large volume can protect the Er

1.5-μm luminescence from vibrational quenching. The average lifetime of the sensitized Er

1.5-μm luminescence reaches ~0.86 ms

with a lifetime component of 2.65 ms

which is by far the longest Er

lifetime in a hydrogen-abundant organic environment and can even compete with that obtained in the fully fluorinated organic Er

system. The optimal sensitization enhances the Er

luminescence

by a factor of 1600 even with a high concentration of the phosphorescent molecule

and bright 1.5-μm OLEDs are obtained.

关键词

Keywords

references

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