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Advanced Materials

Highly Non-Linear Quantum Dot Doped Nanocomposites for Functional Three-Dimensional Structures Generated by Two-Photon Polymerization

Authors

  • Baohua Jia,

    Corresponding author
    1. Centre for Micro-Photonics & CUDOS Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn, VIC 3122 (Australia)
    • Centre for Micro-Photonics & CUDOS Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn, VIC 3122 (Australia).
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  • Dario Buso,

    1. Centre for Micro-Photonics & CUDOS Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn, VIC 3122 (Australia)
    2. CSIRO – Materials Science & Engineering Clayton VIC 3168 (Australia)
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  • Joel van Embden,

    1. Centre for Micro-Photonics & CUDOS Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn, VIC 3122 (Australia)
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  • Jiafang Li,

    1. Centre for Micro-Photonics & CUDOS Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn, VIC 3122 (Australia)
    2. Laboratory of Optical Physics, Institute of Physics Chinese Academy of Sciences Beijing 100190 (P. R. China)
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  • Min Gu

    Corresponding author
    1. Centre for Micro-Photonics & CUDOS Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn, VIC 3122 (Australia)
    • Centre for Micro-Photonics & CUDOS Faculty of Engineering and Industrial Sciences Swinburne University of Technology Hawthorn, VIC 3122 (Australia).
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Abstract

A nanocomposite consisting of a photosensitive organic–inorganic hybrid polymer functionalized with PbS quantum dots has been developed using a sol–gel process. The uniformly dispersed nanocomposite exhibits ultrahigh third-order non-linearity (–3.2 × 10−12 cm2 W−1) because of the strong quantum confinement of small-sized and narrowly distributed quantum dots. The non-linear nanocomposite has been proven to be suitable for the fabrication of 3D micro/nano photonic devices using two-photon polymerization. The fabricated photonic crystals show stop gaps with more than 60% suppression in transmission at the telecommunications wavelength region.

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