Photophysical properties of 9,10-disubstituted anthracene derivatives in solution and films

Ribierre, J. C., Ruseckas, A., Cavaye, H., Barcena, H. S., Burn, P. L. and Samuelt, I. D. W. (2011) Photophysical properties of 9,10-disubstituted anthracene derivatives in solution and films. Journal of Physical Chemistry A, 115 26: 7401-7405. doi:10.1021/jp200668x


Author Ribierre, J. C.
Ruseckas, A.
Cavaye, H.
Barcena, H. S.
Burn, P. L.
Samuelt, I. D. W.
Title Photophysical properties of 9,10-disubstituted anthracene derivatives in solution and films
Journal name Journal of Physical Chemistry A   Check publisher's open access policy
ISSN 1089-5639
1520-5215
Publication date 2011-07
Sub-type Article (original research)
DOI 10.1021/jp200668x
Volume 115
Issue 26
Start page 7401
End page 7405
Total pages 5
Place of publication Washington, DC, United States
Publisher American Chemical Society
Collection year 2012
Language eng
Formatted abstract
We have carried out absorption, time-resolved fluorescence, and fluorescence quantum yield measurements of four new soluble anthracene derivatives. They show natural radiative lifetimes in the range of 2.5—4.4 ns, which is 5—10 times shorter than those reported for unsubstituted anthracene. The 9,10-bis(phenylethynyl)anthracene (BPEA) derivatives show the largest fluorescence transition dipoles, which is attributed to extended π-conjugation between anthracene and phenyls through acetylene linkages. Spin-cast films of the BPEA derivatives show strong fluorescence quenching by weakly emitting low energy excitations, which is attributed to excimer-like traps. Quenching is significantly reduced when bulky dendrons are attached so that they give maximum coverage of the emitting chromophore and prevent their aggregation. The results show that anthracene derivatives can be developed into efficient solution-processable fluorescent emitters for the blue and green spectral regions. 
Keyword Light Emitting Diodes
Conjugated Polymers
Electroluminescent Devices
Fluorescence Lifetime
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Chemistry and Molecular Biosciences
 
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