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One of the key challenges in materials science is to control the properties of a material by directing its supramolecular arrangement. Here we show that iridium complexes, such as FIrpic, Ir-PPY, and Ir-MDQ, can be organized into crystalline and phosphorescent nanoparticles through the nanoprecipitation method, which allows thorough modification of their functional properties. Moreover, we found that it is possible to combine different iridium complexes into a single multicomponent nanostructure, thus creating nanoparticles whose photonic properties derive from the close spatial proximity of the electronic excited states of the different Ir complexes. The morphology of all nanoparticles was fully characterized by microscopic and spectroscopic techniques, and their ordered arrangement was assessed by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (TEM) measurements. We …
American Chemical Society
Publication date: 
5 Sep 2019

Mattia Zangoli, Marco Pugliese, Filippo Monti, Giacomo Bergamini, Stefania D’Amone, Luca Ortolani, Vittorio Morandi, Barbara Cortese, Alberto Zanelli, Massimo Gazzano, Vincenzo Maiorano, Giuseppe Gigli, Ilaria Elena Palamà, Francesca Di Maria

Biblio References: 
Volume: 2 Issue: 10 Pages: 4594-4603
ACS Applied Bio Materials