Organic complexes of lanthanides trivalent ions such as Nd3+ and Er3+ 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 Er3+ 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.

Predictive modeling of the vibrational quenching in emitting lanthanides complexes

MILANI, ALBERTO;BRAMBILLA, LUIGI;CASTIGLIONI, CHIARA
2012-01-01

Abstract

Organic complexes of lanthanides trivalent ions such as Nd3+ and Er3+ 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 Er3+ 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.
2012
Near infrared emitters; Lanthanides complexes; Emission quenching; Vibrational intensities
File in questo prodotto:
File Dimensione Formato  
Monguzzi_SYNMET_2012.pdf

Accesso riservato

: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 612.32 kB
Formato Adobe PDF
612.32 kB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/632581
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 19
social impact