期刊
ADVANCED MATERIALS
卷 16, 期 7, 页码 653-+出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200306291
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Dramatic fluorescence bursts (see Figure and cover) from conjugated polymers are observed upon exposure to air. The burst occurs prior to photo-oxidation and is imaged in single molecules of a ladder-type polymer, but is also found in bulk films. Triplet shelving is identified as an important mechanism limiting the fluorescence yield of conjugated polymers due to both a reduction in photon cycling rates and singlet-triplet quenching in the multichromophoric system.
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