High temperature stable PbS Quantum dots for solid core fiber fabrication

Asha Bhardwaj (1) , Ali Hreibi (1) , C. Liu (2) , Jong Heo (3) , Jean-Marc Blondy (1) , Frédéric Gérôme (1)

1 XLIM-PHOTONIQUE - PHOTONIQUE
2 Wuhan Polytechnic University
3 POHANG UNIVERSITY

For the fabrication of nanoparticle containing optical fibers by melt and draw technique, nanoparticle stability at high temperatures is a requirement. We report the synthesis of quantum dots at temperatures as high as 1000 °C, compatible with fiber drawing, stabilized for the first time by a prior low temperature heating step. It is observed that quantum dots formed by this two step heating leads to a better emission stability at high powers associated with a reversible phenomenon, making these nanomaterials suitable for further technological applications.

Domaines: Optique / photonique

Asha Bhardwaj, Ali Hreibi, C. Liu, Jong Heo, Jean-Marc Blondy, et al.. High temperature stable PbS Quantum dots for solid core fiber fabrication. Optics Express, 2013, 21 (21), pp.24922. ⟨hal-00923902⟩