Cucinotta Fabio, Guenet Aurélie, Bizzarri Claudia, Mróz Wojciech, Botta Chiara, Milián-Medina Begoña, Gierschner Johannes, De Cola Luisa
Physikalisches Institut, Westfälische Wilhelms-Universität Münster, 48149 Münster (Germany).
Istituto per lo Studio delle Macromolecole, CNR via Bassini 15, 20133 Milano (Italy).
Chempluschem. 2014 Jan;79(1):45-57. doi: 10.1002/cplu.201300272. Epub 2013 Dec 20.
A series of iridium(III) compounds have been used as stopper molecules at the pore openings of zeolite L and act as effective donor units for transferring excitation energy to dye molecules entrapped within the zeolite channels. The synthesis and photophysical characterization of the new iridium(III) complexes are described, along with Förster resonance energy-transfer experiments. Transfer efficiencies for the studied systems are discussed on the basis of the role played by the localization of the donor excited state and the acceptor distribution in the channels. Because iridium(III) complexes can also be electrically excited, the electroluminescent behavior of donor-acceptor zeolite systems can be explored, by embedding them into a polymeric active layer and constructing light-emitting devices (LEDs). Novel hybrid LEDs can be fabricated with emission from the dyes entrapped into the zeolites and sensitized by the electro-responsive iridium(III) complex.
一系列铱（III）化合物已被用作L型沸石孔口处的封端分子，并作为有效的供体单元，将激发能转移到困在沸石通道内的染料分子上。本文描述了新型铱（III）配合物的合成及光物理表征，以及Förster共振能量转移实验。基于供体激发态的定位和通道中受体分布所起的作用，讨论了所研究体系的转移效率。由于铱（III）配合物也可被电激发，通过将供体-受体沸石体系嵌入聚合物活性层并构建发光器件（LED），可以探索其电致发光行为。可以制造出新型混合LED，其发射来自困在沸石中的染料，并由电响应铱（III）配合物敏化。
