Electrical detection of plasmon-induced isomerization in molecule-nanoparticle network devices

Abstract

We use a network of molecularly linked gold nanoparticles (NPSAN: nanoparticles self-assembled network) to demonstrate the electrical detection (conductance variation) of a plasmon-induced isomerization (PII) of azobenzene derivatives (azobenzene bithiophene : AzBT). We show that PII is more efficient in a 3D-like (cluster-NPSAN) than in a purely two-dimensional NPSAN (i.e., a monolayer of AzBT functionalized Au NPs). By comparison with usual optical (UV-visible light) isomerization of AzBT, the PII shows a faster (a factor about 10) isomerization kinetics. Possible PII mechanisms are discussed: electric field-induced isomerization, two-phonon process, plasmon-induced resonant energy transfer (PIRET), the latter being the most likely.

arXiv commentFinal manuscript with supporting information

References in corpus (11)

• Quantum Plasmonics
• Conductivity in organic semiconductors hybridized with the vacuum field
• Optical Rectification and Field Enhancement in a Plasmonic Nanogap
• Surface-enhanced Raman scattering and fluorescence near metal nanoparticles
• Multiple Cotunneling in Large Quantum Dot Arrays
• High on-off conductance switching ratio in optically-driven self-assembled conjugated molecular systems
• Sequential tunneling and inelastic cotunneling in nanoparticle arrays
• Surface Plasmon Enhanced Photoconductance of Gold Nanoparticle Arrays with Incorporated Alkane Linkers
• Negative Differential Resistance, Memory and Reconfigurable Logic Functions based on Monolayer Devices derived from Gold Nanoparticles Functionalized with Electro-polymerizable Thiophene-EDOT Units
• High Conductance Ratio in Molecular Optical Switching of Functionalized Nanoparticle Self-Assembled Nanodevices
• Light-stimulable molecules/nanoparticles networks for switchable logical functions and reservoir computing

Cited by in corpus (4)

• Conductance Switching of Azobenzene-Based Self-Assembled Monolayers on Cobalt Probed by UHV Conductive-AFM
• Low frequency noise in nanoparticle-molecule networks and implications for in-materio reservoir computing
• Dynamic switching of ferrocene and plasmonic interactions in Au/self-assembled monolayer/single Ag nanocube molecular junctions
• Low-temperature cotunneling electron transport in photo-switchable molecule-nanoparticle networks