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Platinum-Functionalized Chiral Molecular Squares as Light-Emitting Materials

Published online by Cambridge University Press:  01 February 2011

Lin Zhang ,
Yu-Hua Niu ,
Alex K.-Y. Jen  and
Wenbin Lin
Lin Zhang
Affiliation:
Department of Chemistry, CB#3290, University of North Carolina, Chapel Hill, NC 27599, U.S.A.
Yu-Hua Niu
Affiliation:
Department of Materials Science and Engineering, Box 352120, University of Washington, Seattle, WA 98195, U.S.A.
Alex K.-Y. Jen
Affiliation:
Department of Materials Science and Engineering, Box 352120, University of Washington, Seattle, WA 98195, U.S.A.
Wenbin Lin
Affiliation:
Department of Chemistry, CB#3290, University of North Carolina, Chapel Hill, NC 27599, U.S.A.
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Abstract

A family of new chiral metallocycles based on Pt(II) diimine metallocornors and bis(acetylene) bridging ligands have been synthesized, and characterized by a variety of techniques including 1H and 13C NMR, UV-visible, luminescence, infrared, and circular dichroism (CD) spectroscopies, and mass spectrometry. All metallocycles exhibit very strong phosphorescence with quantum yields of 8.3 to 15.7%. Chiral Pt(II)-based molecular squares were used as the light-emitting layer in multiplayer devices, and a maximum brightness of 5470 cd/m2 with a maximum luminous efficiency of 0.93 cd/A was achieved.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 846: Symposium DD – Organic and Nanocomposite Optical Materials , 2004 , DD3.6
Copyright
Copyright © Materials Research Society 2005

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References

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