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Dr. Georgios Rotas Michael B. Thomas Dr. Ruben Canton-Vitoria Prof. Dr. Francis D'Souza Prof. Dr. Nikos Tagmatarchis 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(29):6652-6661
The preparation of an entirely supramolecular, multichromophoric azaborondipyrromethene ( ABDP )/zinc tetraphenylporphyrin ( ZnTPP )/exfoliated graphene ( GR ) nanoensemble was accomplished. The ABDP derivative bears glycol chains for enhancing solubility and a pyridine functionality for allowing coordination with ZnTPP . The ABDP / ZnTPP/GR nanoensemble was characterized in terms of morphology and composition by using complementary microscopy imaging, thermogravimetric analysis, Raman as well as steady-state and time-resolved absorption and emission spectroscopy. The photophysical and electrochemical assessment of ABDP / ZnTPP/GR as well as the binding properties of the ABDP / ZnTPP complex, employed as a reference, are presented. Energy and electron transfer events were observed in ABDP / ZnTPP upon photoexcitation. However, in the case of ABDP / ZnTPP/GR , the graphene-induced aggregation of the chromophores alters their electronic interactions, enhancing the energy/electron transfer process between them. 相似文献
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