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Proceedings Article

Novel oligonuclear copper complexes featuring exciting luminescent characteristics

[+] Author Affiliations
Daniel M. Zink, Daniel Volz, Larissa Bergmann, Thomas Baumann

cynora GmbH (Germany)

Martin Nieger

Univ. of Helsinki (Finland)

Stefan Bräse

Karlsruhe Institute of Technology (Germany)

Hartmut Yersin

Univ. Regensburg (Germany)

Proc. SPIE 8829, Organic Light Emitting Materials and Devices XVII, 882907 (September 27, 2013); doi:10.1117/12.2028619
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From Conference Volume 8829

  • Organic Light Emitting Materials and Devices XVII
  • Franky So; Chihaya Adachi
  • San Diego, California, United States | August 25, 2013

abstract

A series of highly luminescent mono-, di-, and trinuclear copper(I) complexes has been synthesized using modular ligand systems of easily accessible N^N, P^P or P^N ligands in order to show the rich structural diversity of copper(I) compounds. Those systems allow for the design of various emitting materials with desired photophysical properties, such as emission colors and high efficiencies. The complexes were characterized with well-established methods such as X-ray crystallographic studies or elemental analysis and, in addition, due to their interesting photoluminescence characteristics, their emission properties were further investigated by means of spectroscopic methods as well as DFT-calculations. In detail, various cationic and neutral mononuclear complexes have been synthesized in order to investigate the photophysical properties of this these different types of emitting compounds. It has been found that neutral copper(I) complexes show superior emission properties (with PLQY up to 89%) compared to their cationic counterparts. Furthermore, a series of dinuclear and trinuclear copper(I) complexes has been synthesized featuring an easy tunable emission maximum from sky blue to deep red (481 nm to 713 nm) with extraordinary high photoluminescence quantum yields up to 99%. In addition, a new crosslinking-technique has been developed to open up the door for a new way to fully solution processed OLED using these promising emitting compounds: Alkyne-substituted emitting complexes crosslink automatically with azide-polymers in a copper-catalyzed alkyne-azide Click reaction. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Daniel M. Zink ; Daniel Volz ; Larissa Bergmann ; Martin Nieger ; Stefan Bräse, et al.
" Novel oligonuclear copper complexes featuring exciting luminescent characteristics ", Proc. SPIE 8829, Organic Light Emitting Materials and Devices XVII, 882907 (September 27, 2013); doi:10.1117/12.2028619; http://dx.doi.org/10.1117/12.2028619


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