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Ping‐Pong Energy Transfer in Covalently Linked Porphyrin‐MoS 2 Architectures
Author(s) -
CantonVitoria Ruben,
Scharl Tobias,
Stergiou Anastasios,
Cadranel Alejandro,
Arenal Raul,
Guldi Dirk M.,
Tagmatarchis Nikos
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201914494
Subject(s) - porphyrin , covalent bond , molybdenum disulfide , photochemistry , energy transfer , absorption (acoustics) , förster resonance energy transfer , chemistry , molybdenum , ultrafast laser spectroscopy , fluorescence , metal , spectroscopy , materials science , inorganic chemistry , organic chemistry , chemical physics , optics , physics , quantum mechanics , metallurgy , composite material
Molybdenum disulfide nanosheets covalently modified with porphyrin were prepared and fully characterized. Neither the porphyrin absorption nor its fluorescence was notably affected by covalent linkage to MoS 2 . The use of transient absorption spectroscopy showed that a complex ping‐pong energy‐transfer mechanism, namely from the porphyrin to MoS 2 and back to the porphyrin, operated. This study reveals the potential of transition‐metal dichalcogenides in photosensitization processes.