Optical properties of gold nanoparticles decorated with furan-based diarylethene photochromic molecules

Abstract

 A reversible triggering of furan-based diarylethene molecules chemically attached on gold nanoparticles surface is studied  A reversible blue shift of local surface plasmon resonance of gold nanoparticles decorated with diarylethene molecules is observed.

E/Z photoisomerization pathway in pristine and fluorinated di(3-furyl)ethenes

“…Such bridges include cyclopentene, 60 perfluorocyclobutene, 61 and, most commonly, perfluorocyclopentene. The compounds with the latter have been studied in solution, 45,[62][63][64][65] linked to Au nanoparticles 66,67 or Au surface, 68 and in devices with mechanically controlled break junctions. 69,70 Cyclization in pristine DFE 71,72 and 1,2-methyl substituted DFE 73 has been considered as well.…”

Holography with Photochromic Diarylethenes

“…Diarylethenes are surely the most studied holograms for holographic optical memories, 3D displays, and holographic gratings [7,8,9,10,11,12] belonging to the P-type class, thanks to their well-known good overall photochromic properties [13] and the possibility of obtaining highly responsive films. In addition, the use of diarylethenes in combination with nanoparticles (in particular gold ones) could be of great interest in this field, since the optical properties and their switching can be tuned by acting both on the nanoparticles side (mainly size and dispersion, which affect the plasma frequency) and the photochromic unit side [14,15,16,17,18,19]. The performances of diarylethene based holograms are strongly related to the optimization of the photochromic substrate and to the writing procedure.…”