Organic complexes of lanthanides trivalent ions such as Nd 3+ and Er 3+ are receiving increasing attention in view of their use as dopants in polymeric telecommunication devices. Their employment is however currently limited by their small emission quantum yield (QY) due to non-radiative deactivation of near infrared (NIR) transitions through electronic-vibrational energy transfer (ET). A complete modeling of this quenching effect is presented here and successfully tested on a purpose-made Er 3+ complex. This method provides "a priori" information/predictions regarding the emission properties of new complexes thus establishing useful guidelines for the design and synthesis of new molecules and for the engineering of materials suitable in technological applications. © 2011 Elsevier B.V. All rights reserved.
Monguzzi, A., Milani, A., Mech, A., Brambilla, L., Tubino, R., Castellano, C., et al. (2012). Predictive modeling of the vibrational quenching in emitting lanthanides complexes. SYNTHETIC METALS, 161(23-24), 2693-2699 [10.1016/j.synthmet.2011.10.002].
Predictive modeling of the vibrational quenching in emitting lanthanides complexes
MONGUZZI, ANGELO MARIA;MECH, AGNIESZKA;TUBINO, RICCARDO;MEINARDI, FRANCESCO;
2012
Abstract
Organic complexes of lanthanides trivalent ions such as Nd 3+ and Er 3+ are receiving increasing attention in view of their use as dopants in polymeric telecommunication devices. Their employment is however currently limited by their small emission quantum yield (QY) due to non-radiative deactivation of near infrared (NIR) transitions through electronic-vibrational energy transfer (ET). A complete modeling of this quenching effect is presented here and successfully tested on a purpose-made Er 3+ complex. This method provides "a priori" information/predictions regarding the emission properties of new complexes thus establishing useful guidelines for the design and synthesis of new molecules and for the engineering of materials suitable in technological applications. © 2011 Elsevier B.V. All rights reserved.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
