Energy transfer in a ladder-type methyl-poly(para-phenylene) doped by Pt(II)octaethylporphyrin
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| Title: | Energy transfer in a ladder-type methyl-poly(para-phenylene) doped by Pt(II)octaethylporphyrin |
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| Authors: | Bagnich, S.A.1 bagnich@imaph.bas-net.by, Im, C.2, Bässler, H.3, Neher, D.4, Scherf, U.5 |
| Source: | Chemical Physics. Mar2004, Vol. 299 Issue 1, p11. 6p. |
| Subjects: | Energy transfer, Phenylenediamines, Porphyrins, Phosphorescence |
| Abstract: | The luminescence of a ladder-type methyl-poly(para-phenylene) (MeLPPP) doped by platinum-porphyrin dye PtOEP covering the concentration 10−3 to 5% by weight has been measured employing cw and transient techniques. Upon excitating into the range of absorption of the host strong phosphorescence of the dopant is observed. Possible ways of populating of the dopant triplet state are considered. It is shown that the main channel is singlet–singlet energy transfer among chromophor groups of the polymer followed by Fo¨rster-type transfer to the guest and subsequent intersystem crossing. [Copyright &y& Elsevier] |
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| Database: | Engineering Source |
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