We report the properties of perylene-nanotube complexes that form efficient energy transfer systems. Most perylene-derivatives yield similar ratios between transfer and direct luminescence (0.66 ± 0.04). The photoluminescence spectra of the free compounds and the transfer complex are similar indicating that perylene and nanotubes act as separate systems. A further increase in interaction yields 40% higher transfer rates and luminescence excitation spectra that indicate a change in stacking of the perylene on the nanotube wall. All measurements are consistent with a transfer mechanism based on a dipole-dipole interaction at a distance much smaller than the Förster radius.
Excitation characteristics of different energy transfer in nanotube-perylene complexes / Friederike, Ernst; Timm, Heek; Setaro, Antonio; Rainer, Haag; Stephanie, Reich. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 102:(2013), p. 233105. [10.1063/1.4810912]
Excitation characteristics of different energy transfer in nanotube-perylene complexes
SETARO, ANTONIO;
2013
Abstract
We report the properties of perylene-nanotube complexes that form efficient energy transfer systems. Most perylene-derivatives yield similar ratios between transfer and direct luminescence (0.66 ± 0.04). The photoluminescence spectra of the free compounds and the transfer complex are similar indicating that perylene and nanotubes act as separate systems. A further increase in interaction yields 40% higher transfer rates and luminescence excitation spectra that indicate a change in stacking of the perylene on the nanotube wall. All measurements are consistent with a transfer mechanism based on a dipole-dipole interaction at a distance much smaller than the Förster radius.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.