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Title: Solution processable and optically switchable 1D photonic structures

Abstract

We report the first demonstration of a solution processable, optically switchable 1D photonic crystal which incorporates phototunable doped metal oxide nanocrystals. The resulting device structure shows a dual optical response with the photonic bandgap covering the visible spectral range and the plasmon resonance of the doped metal oxide the near infrared. By means of a facile photodoping process, we tuned the plasmonic response and switched effectively the optical properties of the photonic crystal, translating the effect from the near infrared to the visible. The ultrafast bandgap pumping induces a signal change in the region of the photonic stopband, with recovery times of several picoseconds, providing a step toward the ultrafast optical switching. Optical modeling uncovers the importance of a complete modeling of the variations of the dielectric function of the photodoped material, including the high frequency region of the Drude response which is responsible for the strong switching in the visible after photodoping. Our device configuration offers unprecedented tunability due to flexibility in device design, covering a wavelength range from the visible to the near infrared. Our findings indicate a new protocol to modify the optical response of photonic devices by optical triggers only.

Authors:
ORCiD logo [1];  [2];  [2];  [2];  [2];  [2];  [1];  [3];  [3];  [3];  [3];  [4]
  1. Center for Nano Science and Technology@PoliMi, Milan (Italy). Istituto Italiano di Tecnologia
  2. Politecnico di Milano, Milano (Italy). Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta"
  3. Politecnico di Milano, Milano (Italy). Dipartimento di Fisica
  4. Istituto Italiano di Tecnologia (IIT), Genova (Italy). Dept. of Nanochemistry
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); European Union (EU)
OSTI Identifier:
1494093
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Paternò, Giuseppe M., Iseppon, Chiara, D’Altri, Alessia, Fasanotti, Carlo, Merati, Giulia, Randi, Mattia, Desii, Andrea, Pogna, Eva A. A., Viola, Daniele, Cerullo, Giulio, Scotognella, Francesco, and Kriegel, Ilka. Solution processable and optically switchable 1D photonic structures. United States: N. p., 2018. Web. doi:10.1038/s41598-018-21824-w.
Paternò, Giuseppe M., Iseppon, Chiara, D’Altri, Alessia, Fasanotti, Carlo, Merati, Giulia, Randi, Mattia, Desii, Andrea, Pogna, Eva A. A., Viola, Daniele, Cerullo, Giulio, Scotognella, Francesco, & Kriegel, Ilka. Solution processable and optically switchable 1D photonic structures. United States. https://doi.org/10.1038/s41598-018-21824-w
Paternò, Giuseppe M., Iseppon, Chiara, D’Altri, Alessia, Fasanotti, Carlo, Merati, Giulia, Randi, Mattia, Desii, Andrea, Pogna, Eva A. A., Viola, Daniele, Cerullo, Giulio, Scotognella, Francesco, and Kriegel, Ilka. Fri . "Solution processable and optically switchable 1D photonic structures". United States. https://doi.org/10.1038/s41598-018-21824-w. https://www.osti.gov/servlets/purl/1494093.
@article{osti_1494093,
title = {Solution processable and optically switchable 1D photonic structures},
author = {Paternò, Giuseppe M. and Iseppon, Chiara and D’Altri, Alessia and Fasanotti, Carlo and Merati, Giulia and Randi, Mattia and Desii, Andrea and Pogna, Eva A. A. and Viola, Daniele and Cerullo, Giulio and Scotognella, Francesco and Kriegel, Ilka},
abstractNote = {We report the first demonstration of a solution processable, optically switchable 1D photonic crystal which incorporates phototunable doped metal oxide nanocrystals. The resulting device structure shows a dual optical response with the photonic bandgap covering the visible spectral range and the plasmon resonance of the doped metal oxide the near infrared. By means of a facile photodoping process, we tuned the plasmonic response and switched effectively the optical properties of the photonic crystal, translating the effect from the near infrared to the visible. The ultrafast bandgap pumping induces a signal change in the region of the photonic stopband, with recovery times of several picoseconds, providing a step toward the ultrafast optical switching. Optical modeling uncovers the importance of a complete modeling of the variations of the dielectric function of the photodoped material, including the high frequency region of the Drude response which is responsible for the strong switching in the visible after photodoping. Our device configuration offers unprecedented tunability due to flexibility in device design, covering a wavelength range from the visible to the near infrared. Our findings indicate a new protocol to modify the optical response of photonic devices by optical triggers only.},
doi = {10.1038/s41598-018-21824-w},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {Fri Feb 23 00:00:00 EST 2018},
month = {Fri Feb 23 00:00:00 EST 2018}
}

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Figures / Tables:

Figure 1 Figure 1: (a) SEM cross section of the SiO2/ITO 1D photonic crystal. The bright layers correspond to the higher contrast ITO nanoparticle layer, the darker layers to SiO2. Inset: sketch of the SiO2/ITO 1D photonic crystal indicating the contribution to the optical response: Δn corresponds to the refractive index contrast,more » which is responsible for the photonic bandgap in the visible, while the high absorption in the near infrared is due to free carriers (i.e. plasmonic response) of the ITO nanoparticles depicted by the plasma frequency as a function of the carrier density N (ωp(N)). (b) Experimental (upper panel) and theoretical (lower panel) absorption spectrum of the 1D photonic structure at normal incidence.« less

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Works referencing / citing this record:

Wide Dynamic Range in Tunable Electrochromic Bragg Stacks from Doped Semiconductor Nanocrystals
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  • Heo, Sungyeon; Agrawal, Ankit; Milliron, Delia J.
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All-Optical Transmission Modulation Due to Inelastic Interactions of Ultrashort Pulses in a Disordered Resonant Medium
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Electrochromism in Electrolyte-Free and Solution Processed Bragg Stacks
text, January 2020


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.