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Synergistic switching of plasmonic resonances and molecular spin states

By Khaldoun Abdul-Kader, Manuel Lopes, Carlos Bartual-Murgui, Olena Kraieva, Edna Hernandez, Lionel Salmon, William Nicolazzi, Franck Carcenac, Christophe Thibault, Gabor Molnar and Azzedine Bousseksou

Abstract

International audiencePlasmonic resonance properties of a series of lithographically patterned gold nanorod arrays, spin coated by thin films of an iron(II)–triazole type spin crossover complex, were investigated upon heating/cooling and also under 633 nm laser irradiation. In both cases a reversible shift of the localised surface plasmon resonance wavelength was observed and quantitatively linked to the refractive index change accompanying the spin transition. These results show that molecular spin state switching can be very efficiently triggered by the photo-thermal effect, which – in turn – allows for an active tuning of the plasmon resonance

Topics: [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
Publisher: Royal Society of Chemistry
Year: 2013
DOI identifier: 10.1039/c3nr01337e
OAI identifier: oai:HAL:hal-01767595v1
Provided by: HAL - UPEC / UPEM
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