Lupton, J. M. ; Pogantsch, A. ; Piok, T. ; List, E. J. W. ; Patil, S. ; Scherf, U. (2002) Intrinsic Room-Temperature Electrophosphorescence from aπ-Conjugated Polymer Physical Review Letters, 89 (16). ISSN 0031-9007
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Official URL: http://doi.org/10.1103/PhysRevLett.89.167401
Related URL: http://dx.doi.org/10.1103/PhysRevLett.89.167401
Abstract
Electrically induced phosphorescence from a poly(para-phenylene) ladder-type polymer is observed for the first time and characterized using time resolved spectroscopy. Short-lived phosphorescence is also observed in gated fluorescence spectra and is found to be quenched reversibly by oxygen. Thermally activated triplet diffusion to covalently bound palladium sites, which are formed at a concentration of about 80 ppm in a side reaction during polymer synthesis, is believed to be the cause of this novel effect, which suggests a new approach to the design of efficient electroluminescent materials.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 120622 |
| Deposited On: | 02 Jul 2021 07:51 |
| Last Modified: | 02 Jul 2021 07:51 |
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