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

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<inf>2</inf>. The use of transient absorption spectroscopy showed that a complex...

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Detalles Bibliográficos
Autores: Canton-Vitoria, Ruben, Scharl, Tobias, Stergiou, Anastasios, Cadranel, Alejandro, Arenal, Raul, Guldi, Dirk M., Tagmatarchis, Nikos
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:87822
Acceso en línea:http://zaguan.unizar.es/record/87822
Access Level:acceso abierto
Descripción
Sumario: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<inf>2</inf>. The use of transient absorption spectroscopy showed that a complex ping-pong energy-transfer mechanism, namely from the porphyrin to MoS<inf>2</inf> and back to the porphyrin, operated. This study reveals the potential of transition-metal dichalcogenides in photosensitization processes.