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Highly Non‐Linear Quantum Dot Doped Nanocomposites for Functional Three‐Dimensional Structures Generated by Two‐Photon Polymerization
Author(s) -
Jia Baohua,
Buso Dario,
van Embden Joel,
Li Jiafang,
Gu Min
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201000513
Subject(s) - materials science , nanocomposite , quantum dot , polymerization , photonics , nanotechnology , doping , fabrication , optoelectronics , polymer , nanoparticle , composite material , medicine , alternative medicine , pathology
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 cm 2 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.