Photoinitiated Energy Transfer in Porous‐Cage‐Stabilised Silver Nanoparticles

Abstract: We report a new composite material consisting of silver nanoparticles decorated with three‐dimensional molecular organic cages based on light‐absorbing porphyrins. The porphyrin cages serve to both stabilize the particles and allow diffusion and trapping of small molecules close to the metallic surface. Combining these two photoactive components results in a Fano‐resonant interaction between the porphyrin Soret band and the nanoparticle‐localised surface‐plasmon resonance. Time‐resolved spectroscopy revealed the silver nanoparticles transfer up to 37 % of their excited‐state energy to the stabilising layer of porphyrin cages. These unusual photophysics cause a 2‐fold current increase in photoelectrochemical water‐splitting measurements. The composite structure provides a compelling proof of concept for advanced photosensitiser systems with intrinsic porosity for photocatalytic and sensing applications.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Photoinitiated Energy Transfer in Porous‐Cage‐Stabilised Silver Nanoparticles ; day:08 ; month:05 ; year:2023 ; extent:8 ; Angewandte Chemie / International edition. International edition ; (08.05.2023) (gesamt 8)

Beteiligte, Orts- und Zeitangaben

• Urheber: Wilms, Michael ; Melendez, Lesly V. ; Hudson, Rohan J. ; Hall, Christopher R. ; Ratnayake, Samantha Prabath ; Smith, Trevor ; Gaspera, Enrico Della ; Bryant, Gary ; Connell, Timothy U. ; Gómez, Daniel E.

Weitere Informationen

• DOI: 10.1002/anie.202303501
• URN: urn:nbn:de:101:1-2023050916282375600360
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 14.08.2025, 10:58 MESZ