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Energy Express

Energy Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. S6 — Nov. 7, 2011
  • pp: A1281–A1293

Deep blue polymer light emitting diodes based on easy to synthesize, non-aggregating polypyrene

Roman Trattnig, Teresa M. Figueira-Duarte, Dominik Lorbach, Wolfgang Wiedemair, Stefan Sax, Stefanie Winkler, Antje Vollmer, Norbert Koch, Marianna Manca, Maria Antonietta Loi, Martin Baumgarten, Emil J.W. List, and Klaus Müllen  »View Author Affiliations


Optics Express, Vol. 19, Issue S6, pp. A1281-A1293 (2011)
http://dx.doi.org/10.1364/OE.19.0A1281


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Abstract

Thorough analyses of the photo- and devicephysics of poly-7-tert-butyl-1,3-pyrenylene (PPyr) by the means of absorption and photoluminescence emission, time resolved photoluminescence and photoinduced absorption spectroscopy as well as organic light emitting devices (OLEDs) are presented in this contribution. Thereby we find that this novel class of polymers shows deep blue light emission as required for OLEDs and does not exhibit excimer or aggregate emission when processed from solvents with low polarity. Moreover the decay dynamics of the compound is found to be comparable to that of well blue emitting conjugated polymers such as polyfluorene. OLEDs built in an improved device assembly show stable bright blue emission for the PPyr homopolymer and further a considerable efficiency enhancement can be demonstrated using a triphenylamine(TPA)/pyrene copolymer.

© 2011 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.5470) Materials : Polymers
(250.2080) Optoelectronics : Polymer active devices
(260.2510) Physical optics : Fluorescence
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Light-Emitting Diodes

History
Original Manuscript: October 11, 2011
Revised Manuscript: October 31, 2011
Manuscript Accepted: November 3, 2011
Published: November 7, 2011

Virtual Issues
Organic Light-Emitting Diodes (2011) Optics Express

Citation
Roman Trattnig, Teresa M. Figueira-Duarte, Dominik Lorbach, Wolfgang Wiedemair, Stefan Sax, Stefanie Winkler, Antje Vollmer, Norbert Koch, Marianna Manca, Maria Antonietta Loi, Martin Baumgarten, Emil J.W. List, and Klaus Müllen, "Deep blue polymer light emitting diodes based on easy to synthesize, non-aggregating polypyrene," Opt. Express 19, A1281-A1293 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-S6-A1281


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