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タイトル :Dexter Type Energy Transfer in Meta-Linked Branching Dendrimers
著者 :Akai, Ichiro
Miyanari, Kuniaki
Shimamoto, Tomoshige
Fujii, Atsuhiro
Kimura, Mutsumi
刊行年月日 :2010
収録雑誌名 :Physics Reports of Kumamoto University
巻 :13
号 :2
開始ページ :333
終了ページ :340
要約(Abstract) :We investigated rapid energy transfer (ET) processes in dendrimers having meta-linked branching light harvesting antennas. It was found that, at room temperature (RT), the rapid ET occurs efficiently from the antennas to the core and gives rise to intense core-PL bands under the selective excitation on the antenna. However, the ET efficiency impairs at lower temperatures than ~100 K. For understanding these experimental results, we analyzed molecular vibrations and molecular orbitals of a simple model molecule. From these analyses, it was demonstrated that the torsional vibration of the entire antenna subunit is excited sufficiently at RT and the rapid ET in phDGn dendrimer is realized via the π*-conjugated network mediated by thermal activation of this torsional vibration.
収録種別 :紀要論文
ISSN :03034070
出版社(者) :熊本大学
URI :http://hdl.handle.net/2298/18152
このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/2298/18152