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Ping-Pong Energy Transfer in Covalently Linked Porphyrin-MoS2 Architectures.

ABSTRACT: 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 MoS2 . The use of transient absorption spectroscopy showed that a complex ping-pong energy-transfer mechanism, namely from the porphyrin to MoS2 and back to the porphyrin, operated. This study reveals the potential of transition-metal dichalcogenides in photosensitization processes.

SUBMITTER: Canton-Vitoria R 

PROVIDER: S-EPMC7154652 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Ping-Pong Energy Transfer in Covalently Linked Porphyrin-MoS<sub>2</sub> Architectures.

Canton-Vitoria Ruben R   Scharl Tobias T   Stergiou Anastasios A   Cadranel Alejandro A   Arenal Raul R   Guldi Dirk M DM   Tagmatarchis Nikos N  

Angewandte Chemie (International ed. in English) 20200130 10

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<sub>2</sub> . The use of transient absorption spectroscopy showed that a complex ping-pong energy-transfer mechanism, namely from the porphyrin to MoS<sub>2</sub> and back to the porphyrin, operated. This study reveals the potential of transition-metal dichalcogenides in photosensitization p  ...[more]

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