Team
- Permanent member: Olivier Pluchery
- PhD student: Angéline Dileseigres
Gold nanoparticles exhibit unique optical properties related to their plasmon resonance (LSPR). LSPR under excitation by light, induces a strong resonance of the electrons inside the nanoparticles. We seek using this high-energy electrons (called hot electrons) for enhancing conductive properties of conjugated molecules. We are working in particular with switchable molecules such as diarylethene (Nobel Prize in chemistry 2016) whose morphology and electronic properties can be switched by illumination at the proper wavelength. These molecules can be switched from conductive to insulating molecular wire. The PlasmoChrom project is based on the expertise in three hot topics shared by the three partners of the project: the understanding of electrical transport through metal-molecule-metal junctions, the synthesis of tailored switching molecules, and advanced plasmonics related to the physics of photo-assisted transport.
Caption: Optically switchable molecule (Diarylethene, DAE): visible light opens the conjugation whereas UV light recovers the conjugated molecule. Collab with Th. Huhn (Konstanz).
Funding
- ANR PlasmoChrom
Collaboration
- Elke Scheer and Thomas Huhn, Konstanz University, department of chemistry, Germany
Publications
- M.O. Stetsenko, S. P. Rudenko, L. S. Maksimenko, B. K. Serdega, O. Pluchery, et al.. Optical Properties of Gold Nanoparticle Assemblies on a Glass Surface. Nanoscale Research Letters, SpringerOpen, 2017, 12, pp.348. ⟨10.1186/s11671-017-2107-8⟩. ⟨hal-01534721⟩
- M.O. Stetsenko, S. P. Rudenko, L. S. Maksimenko, B. K. Serdega, O. Pluchery, et al.. Optical Properties of Gold Nanoparticle Assemblies on a Glass Surface. Nanoscale Research Letters, SpringerOpen, 2017, 12, pp.348. ⟨10.1186/s11671-017-2107-8⟩. ⟨hal-01534721⟩
- S.V. Snegir, A.A. Khodko, D. Sysoiev, Emmanuelle Lacaze, O. Pluchery, et al.. Optical Properties of Gold Nanoparticles Decorated with Furan-based Diarylethene Photochromic Molecules. Journal of Photochemistry and Photobiology A: Chemistry, Elsevier, 2017, 342, pp.78-84. ⟨10.1016/j.jphotochem.2017.04.003⟩. ⟨hal-01504547⟩
- S. Snegir, I. Mukha, D. Sysoiev, Emmanuelle Lacaze, T. Huhn, et al.. Optically controlled properties of nanoparticles stabilised by photochromic difurylethene-base diarylethenes. Materials Science and Engineering Technology / Materialwissenschaft und Werkstofftechnik, Wiley-VCH Verlag, 2016, 47 (2-3), pp.229 – 236. ⟨10.1002/mawe.201600472⟩. ⟨hal-01518910⟩
