Novel Er3+ Perfluorinated Complexes for Broadband Sensitized Near Infrared Emission
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- 作者：Angelo Monguzzi ; Riccardo Tubino ; Francesco Meinardi ; Alessio Orbelli Biroli ; Maddalena Pizzotti ; Francesco Demartin ; Francesco Quochi ; Fabrizio Cordella ; Maria Antonietta Loi
- 刊名：Chemistry of Materials
- 出版年：2009
- 出版时间：January 13, 2009
- 年：2009
- 卷：21
- 期：1
- 页码：128-135
- 全文大小：297K
- 年卷期：v.21,no.1(January 13, 2009)
- ISSN：1520-5002
文摘
The synthesis and characterization of novel fluorinated Er3+ complexes emitting at the telecommunications wavelengths are presented. These new knowledge-based materials have been designed and optimized on the basis of an extensive photophysical investigation on the processes controlling the overall quantum yield, namely (i) the energy transfer process from the light harvesting conjugated antenna to the emitting ion and (ii) the nonradiative quenching of the lanthanide emission. The study of their photophysical properties has been used for the assessment of their application as active materials in a new generation of low-cost, optical communication amplifiers, based on solution-processed planar waveguides pumped by light emitting diodes (LEDs). Suitable ligands possessing a high-absorption cross-section (where commercially available LEDs operate), good energy level matching those of the ion, and high solubility in fluorinated polymers have been developed.