Resonant Energy Transport in Dye-Filled Monolithic Crystals of Zeolite L: Modeling of Inhomogeneity Articles uri icon

authors

  • VIANI, LUCAS
  • MINOIA, ANDREA
  • CORNIL, JEROME
  • BELJONNE, DAVID
  • EGELHAAF, HANS JOACHIM
  • GIERSCHNER, JOHANNES

publication date

  • December 2016

start page

  • 27192

end page

  • 27199

issue

  • 48

volume

  • 120

international standard serial number (ISSN)

  • 1932-7447

electronic international standard serial number (EISSN)

  • 1932-7455

abstract

  • Resonant energy transfer (RET) is a key mechanism in organic optoelectronic devices, and its efficiency depends critically on the intermolecular arrangement of the active compounds. Supramolecular organization promoted by nanostructured supramolecular host guest compounds (HGCs) is an elegant way of controlling the packing of the molecules inserted in optically inert organic or inorganic host materials. Under ideal conditions (i.e., dye properties and homogeneous distribution) very high exciton diffusion rates are expected in zeolite L HGCs, being of high relevance for practical applications. From experiment, however, there is clear evidence for inhomogeneity dependent on the type of chromophore, the preparation procedure, and the size of host crystals, but the reason for inhomogeneity and the consequences on exciton diffusion are under debate.

keywords

  • one-dimensional channels; electronic excitation-energy; inclusion-compounds; theoretical characterization; supramolecular organization; conjugated molecules; l microcrystals; antenna system; l nanochannels; orientation