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|Title:||Electrical detection of plasmon-induced isomerization in molecule–nanoparticle network devices||Authors:||Didier Stiévenard
|Issue Date:||9-Nov-2018||Publisher:||Royal Society of Chemistry||Citation:||Didier Stiévenard, David Guérin, Stéphane Lenfant, Gaëtan Lévêque, NIJHUIS,CHRISTIAN ALBERTUS, Dominique Vuillaume (2018-11-09). Electrical detection of plasmon-induced isomerization in molecule–nanoparticle network devices. Nanoscale 10 (48) : 23122–23130. ScholarBank@NUS Repository. https://doi.org/10.1039/C8NR07603K||Abstract:||We use a network of molecularly linked gold nanoparticles (NPSAN: nanoparticle self-assembled network) to demonstrate the electrical detection (conductance variation) of plasmon-induced isomerization (PII) of azobenzene derivatives (azobenzene bithiophene: AzBT). We show that PII is more efficient in a 3D-like NPSAN (cluster-NPSAN) than in a purely two-dimensional NPSAN (i.e., a monolayer of AzBT functionalized Au NPs). By comparison with the usual optical (UV-visible light) isomerization of AzBT, PII shows faster (a factor > ∼10) isomerization kinetics. Possible PII mechanisms are discussed: electric field-induced isomerization, two-phonon process, and plasmon-induced resonance energy transfer (PIRET), the latter being the most likely.||Source Title:||Nanoscale||URI:||https://scholarbank.nus.edu.sg/handle/10635/191229||ISSN:||20403364
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