Details

Autor(en) / Beteiligte

• Hartmann, Thomas
• Shrestha, Tej B
• Bossmann, Stefan H
• Hubner, Christian
• Renn, Alois
• Durr, Heinz

Titel

A light-induced photochromic nanoswitch capable of non-destructive readout via fluorescence emission: cluster vs. single-molecule excitation of dihydroindolizines

Ist Teil von

• Photochemical & photobiological sciences, 2009-01, Vol.8 (8), p.1172-1178

Ort / Verlag

한국광과학회

Erscheinungsjahr

2009

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We have synthesized a prototype of a photochromic styrylquinolyl-dihydroindolizine (DHI), which forms a highly coloured and fluorescent betaine upon irradiation with $\lambda$ < 400 nm. Embedding this photochromic DHI in a thin polymethyl methacrylate (PMMA) film permits the non-destructive readout via fluorescence at low temperature (77 K). Thus, either a non-destructive photoswitch or an information recording system becomes available. Both possibilities have been explored: image recording and read-out, as well as information storage (at 77 K) have been demonstrated. Cluster- and single molecule-fluorescence upon laser excitation ($\lambda$ = 355 nm) of the styrylquinolyl-dihydroindolizine in a PMMA matrix, and the effect of fluorescence blinking has been observed.