Comparison of the Photophysical Parameters for Three Perylene Bisimide Derivatives by Single‐Molecule Spectroscopy

Abstract

Characterization of the photophysical parameters for three perylene bisimide derivatives is presented. We exploited time-resolved and steady-state spectroscopy on both ensembles and single molecules under ambient as well as cryogenic (1.4 K) conditions. The finding is that these chromophores show extraordinary high fluorescence-emission rates, low intersystem crossing yields to the triplet state, and relatively short triplet lifetimes.

Restricted conformation dynamics of single functionalized perylene bisimide molecules on SiO2surfaces and in thin polymer films

“…Fluorescence was focused onto an intensified frame transfer camera (Pentamax Roper Scientific), whereas excitation laser light was suppressed by a long pass filter (Omega "3RD530LP"). [22], and toluene (606 nm) [9]. The spectrum in toluene shows a pronounced vibronic side band (as has been observed in all other solution spectra), which is less pronounced for PP in PMMA and on SiO 2 .…”

Synthesis and Self‐Assembly of Bay‐Substituted Perylene Diimide Gemini‐Type Surfactants as Off‐On Fluorescent Probes for Lipid Bilayers

“…Substituted perylene‐3,4:9,10‐tetracarboxylic diimides (PDIs) have attracted interest for a variety of applications, including organic electronics,1, 2, 3 single molecule spectroscopy4, 5, 6 and bioimaging 7, 8, 9. For bioimaging, fluorescent quenching of PDIs has been used to sense hydrophobicity changes such as in artificial and cellular bilayers 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20.…”

Exciton Transport in Molecular Aggregates – From Natural Antennas to Synthetic Chromophore Systems

“…Thus, they are thermally, chemically and photochemically very stable and their monomers show fluorescence quantum yields that are often close to unity. With these molecular properties, PBIs evolved as the most appreciated class of dyes for singlemolecule spectroscopy studies that were performed for monomers, [247] covalently tethered dimers, [248] macrocycles, [249] and dendrimers. [250] From these studies a wealth of information could be derived for many photophysical processes such as energy transfer or annihilation phenomena, [205] as well as morphological transitions in polymeric matrices.…”