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Designs, Synthesis, Characterization and Direct Electrochemistry of Zinc‐Porphyrin Bearing Pyrene Noncovalent Functionalized Graphene Oxide Sheet
Author(s) -
Bi Chun,
Li Yongjie,
Chen Haowen,
Yin Gui,
Zhu Junjie
Publication year - 2012
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201200282
Subject(s) - chemistry , graphene , pyrene , porphyrin , covalent bond , stacking , photochemistry , raman spectroscopy , oxide , surface modification , zinc , photoinduced electron transfer , electron transfer , nanotechnology , organic chemistry , physics , optics , materials science
We have designed and synthesis a new compound of zinc‐porphyrin bearing four pyrene groups (ZnP‐t‐P(py) 4 ) and prepared a new hybrid materials of ZnP‐t‐P(py) 4 with graphene oxide (GO) via non‐covalent interactions. The ZnP‐t‐P(py) 4 , along with four pendant pyrene entities ZnP‐t‐P(py) 4 , stacking on the (GO) surface due to π‐ π interactions, has been revealed by AFM measurements. FTIR, UV‐vis absorption confirm the non‐covalent functionalization of the GO. Raman spectral measurements revealed the electronic structure of the GO to be intact upon hybrid formation. In this donor‐acceptor nanohybrid, the fluorescence of photoexcited ZnP‐t‐P(py) 4 is effectively quenched by a possible electron‐transfer process. The fluorescence and photoelectrical response measurements also showed that this hybrid may act as an efficient photoelectric conversion material for optoelectronic applications.