TY - JOUR
T1 - Third-Order Nonlinear Optical Properties of Layered Type Hybridized Thin Films Consisting of Oriented Polydiacetylene Nanofibers and Silver Nanoparticles
AU - Wada, Kosuke
AU - Onodera, Tsunenobu
AU - Kasai, Hitoshi
AU - Sato, Rodrigo
AU - Takeda, Yoshihiko
AU - Oikawa, Hidetoshi
N1 - Funding Information:
The present research was performed by the financial support from both Cooperative Research Program of “Network Joint Research Center for Materials and Devices” and “NIMS Joint Research Hub Program”.
Publisher Copyright:
Copyright © 2019 American Chemical Society.
PY - 2019/10/24
Y1 - 2019/10/24
N2 - Layered type hybridized thin films, which were composed of oriented polydiacetylene (PDA) nanofibers (NFs) and silver (Ag) nanoparticles (NPs), have been fabricated successfully by means of the alternative processes of the layer-by-layer (LbL) method and the convective assembly method. The wavelength dispersion of third-order nonlinear optical (NLO) susceptibility, χ(3)(ω), and the corresponding figure of merit (FOM) have been evaluated correctly by the combined analysis with femtosecond pump-probe spectroscopy and spectroscopic ellipsometry. It has become apparent that both χ(3)(ω) and FOM were enhanced evidently in the layered type hybridized thin films under the optimized condition of a suitably adsorbed amount of Ag NPs, compared with random thin films of PDA NFs and/or oriented thin films of PDA NFs, because of the localized surface plasmon resonance (LSPR) effect from Ag NPs as well as the orientation effect of PDA NFs. This would provide a new design guide for organic NLO hybrid nanomaterials toward photonic device applications.
AB - Layered type hybridized thin films, which were composed of oriented polydiacetylene (PDA) nanofibers (NFs) and silver (Ag) nanoparticles (NPs), have been fabricated successfully by means of the alternative processes of the layer-by-layer (LbL) method and the convective assembly method. The wavelength dispersion of third-order nonlinear optical (NLO) susceptibility, χ(3)(ω), and the corresponding figure of merit (FOM) have been evaluated correctly by the combined analysis with femtosecond pump-probe spectroscopy and spectroscopic ellipsometry. It has become apparent that both χ(3)(ω) and FOM were enhanced evidently in the layered type hybridized thin films under the optimized condition of a suitably adsorbed amount of Ag NPs, compared with random thin films of PDA NFs and/or oriented thin films of PDA NFs, because of the localized surface plasmon resonance (LSPR) effect from Ag NPs as well as the orientation effect of PDA NFs. This would provide a new design guide for organic NLO hybrid nanomaterials toward photonic device applications.
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U2 - 10.1021/acs.jpcc.9b05665
DO - 10.1021/acs.jpcc.9b05665
M3 - Article
AN - SCOPUS:85073240220
VL - 123
SP - 25781
EP - 25787
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 42
ER -