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  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper CK_10_2

Directional Fluorescence Shaping and Lasing in All-Polymer Microcavities Doped with CdSe/CdS Dot-in-Rod nanocrystals

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Colloidal nanocrystals (NCs) have attracted considerable attention in the field of light emitting devices thanks to their high fluorescence quantum yield and spectral tunability via electronic structure engineering and surface functionalization.[1,2] Their composition and shape can be adjusted to obtain materials with tailored and stable optoelectronic properties. Surface functionalization allows solubility in both organic solvents and water paving the way to a variety of solution-processing technologies[3]. Careful surface chemical engineering can drive NCs self-organization and preparation of nanocomposites, which is critical to create hybrid materials for photonic devices. Thanks to low costs, versatility, and compatibility with flexible thin film technologies, the combination of polymers and colloidal NCs are of great promise for lighting and photosensing. Combining polymer microcavities with NC as gain material promises a solution-based fabrication route to plastic laser cavities as well as applications in the field of smart flexible large area light sources and sensors[4-5]. The production of planar photonic structures such as Distributed Bragg Reflectors (DBRs) and microcavities with these simple techniques is very stimulating, because it allows the use of commercially available polymers and does not require expensive methods such as high vacuum deposition. Furthermore, the fabrication can be accomplished on many different substrates including glass, silicon, plastic, and elastic materials suitable for flexible devices.

© 2017 IEEE

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