Facile design of red-emitting waveguides using hybrid nanocomposites made of inorganic clusters dispersed in SU8 photoresist host - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Optical Materials Année : 2016

Facile design of red-emitting waveguides using hybrid nanocomposites made of inorganic clusters dispersed in SU8 photoresist host

Nolwenn Huby
John Bigeon
  • Fonction : Auteur
  • PersonId : 948618
Alexandre Garreau
  • Fonction : Auteur
  • PersonId : 967974
Yann Molard
Julien Fade
Anthony Désert
Eric Faulques
Jean-Luc Duvail
  • Fonction : Auteur
  • PersonId : 947325

Résumé

Integration of stable emissive entities into organic waveguide with minimum scattering is essential to design efficient optically active devices. Here we present a new class of doped nanocomposite waveguides exploiting 1-nm diameter metallic cluster-based building blocks as red-NIR luminescent dyes embedded in a SU8 polymeric matrix, a reference photoresist for organic photonics. These building blocks are [Mo6Ii8(OOCC2F5)a6]2− cluster anionic units with unique chemical and physical features well suited for optical nanocomposites such as a ligand-promoted dispersibility, a large Stokes shift with a broad absorption window and an emission window in the range 600–900 nm. A whole investigation of the nanocomposite has been first performed. Optical characterizations of Cs2[Mo6Ii8(OOCCnF2n+1)a6]@SU8 nanocomposites thin film and waveguiding structures show their relevance as active layers in integrated structures with a significant increase of the refractive index of 3 × 10−2 when the cluster concentration increases up to 4 wt%, while keeping high values for the transmitted power, as shown for different waveguide dimensions and clusters concentrations. The efficiency of photoluminescence propagation is investigated as a function of clusters concentration in the excitation area for several waveguides dimensions. Attenuation coefficient ranges between 5 and 18 dB/cm, values of the same order of magnitude as those obtained in polymeric waveguide doped with QDs or organic dyes. This original, stable and efficient nanocomposite is promising for downscaling complex nanosources and active waveguides in the visible and NIR range.
Fichier non déposé

Dates et versions

hal-01253411 , version 1 (10-01-2016)

Identifiants

Citer

Nolwenn Huby, John Bigeon, Quentin Lagneaux, Maria Amela-Cortes, Alexandre Garreau, et al.. Facile design of red-emitting waveguides using hybrid nanocomposites made of inorganic clusters dispersed in SU8 photoresist host. Optical Materials, 2016, 52, pp.196-202. ⟨10.1016/j.optmat.2015.12.034⟩. ⟨hal-01253411⟩
292 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More