Photoinduced electron transfer and enhanced fluorescence of C 60 pearl-necklace polymers

Lixin Xiao, Hidekazu Shimotani, Nita Dragoe, Atsushi Sugita, Kazuhiko Saigo, Yoshihiro Iwasa, Takayoshi Kobayashi, Koichi Kitazawa

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Photoinduced electron transfer (PET) and enhancement of fluorescence were observed simultaneously for a series of donor-acceptor-type C 60 pearl-necklace polymers, contradicting the conventional notion that the formation of charge-separated state derived from electron transfer (ET) causes the quenching of fluorescence. The quantum yield o f of the present polymers was one to two orders of magnitude larger than that of the pristine C 60 . On the other hand, light-induced electron spin resonance (LESR) signals, exhibiting signatures of both the aromatic diamine component cation and the C 60 anion, implied the formation of an ion-radical pair caused by the PET.

Original languageEnglish
Pages (from-to)738-744
Number of pages7
JournalChemical Physics Letters
Issue number5-6
Publication statusPublished - 2003 Jan 24


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