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Laser-induced intramolecular charge transfer in a lutetium bis-phthalocyanine thin film

✍ Scribed by Thu-Hoa Tran-Thi; Dimitra Markovitsi; Raymond Even; Jacques Simon

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 395 KB
Volume: 139
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)80179-3

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✦ Synopsis

Laser excitation of lutetium bis-phthalocyanine thin film in both the Q band (A,,,.. = 670 nm) and the intramolecular chargetransfer band (I.,,,,, = 1423 nm) leads to the same transient species, which has been characterized by its optical absorption spectrum and lifetime. The transient species results either from a direct charge-transfer reaction from the di-anion PC'-subunit to the radical ion PC-moiety, or via electronically excited states of PcZLu. A cooperative molecular orientation is invoked in the groundstate energy recovery process of the transient species.