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Unveiling the Photoinduced Electron‐Donating Character of MoS 2 in Covalently Linked Hybrids Featuring Perylenediimide
Author(s) -
Sideri Ioanna K.,
Jang Youngwoo,
GarcésGarcés Jose,
SastreSantos Ángela,
CantonVitoria Ruben,
Kitaura Ryo,
FernándezLázaro Fernando,
D'Souza Francis,
Tagmatarchis Nikos
Publication year - 2021
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.202016249
Subject(s) - perylene , covalent bond , electron acceptor , photochemistry , femtosecond , materials science , ultrafast laser spectroscopy , electron , optoelectronics , chemistry , molecule , organic chemistry , laser , optics , physics , quantum mechanics
The covalent functionalization of MoS 2 with a perylenediimide (PDI) is reported and the study is accompanied by detailed characterization of the newly prepared MoS 2 ‐PDI hybrid material. Covalently functionalized MoS 2 interfacing organic photoactive species has shown electron and/or energy accepting, energy reflecting or bi‐directional electron accepting features. Herein, a rationally designed PDI, unsubstituted at the perylene core to act as electron acceptor, forces MoS 2 to fully demonstrate for the first time its electron donor capabilities. The photophysical response of MoS 2 ‐PDI is visualized in an energy‐level diagram, while femtosecond transient absorption studies disclose the formation of MoS 2 .+ ‐PDI .− charge separated state. The tunable electronic properties of MoS 2 , as a result of covalently linking photoactive organic species with precise characteristics, unlock their potentiality and enable their application in light‐harvesting and optoelectronic devices.