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Title: Electric switching of visible and infrared transmission using liquid crystals co-doped with plasmonic gold nanorods and dichroic dyes

Abstract

Smart windows and many other applications require synchronous or alternating facile electric switching of transmitted light intensity in visible and near infrared spectral ranges, but most electrochromic devices suffer from slow, nonuniform switching, high power consumption and limited options for designing spectral characteristics. Here we develop a guest-host mesostructured composite with rod-like dye molecules and plasmonic nanorods spontaneously aligned either parallel or orthogonally to the director of the liquid crystal host. This composite material enables fast, low-voltage electric switching of electromagnetic radiation in visible and infrared ranges, which can be customized depending on the needs of applications, like climate-dependent optimal solar gain control in smart windows.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Univ. of Colorado, Boulder, CO (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1464334
Alternate Identifier(s):
OSTI ID: 1502491
Grant/Contract Number:  
SC0010305
Resource Type:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Name: Optics Express Journal Volume: 26 Journal Issue: 17; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; electric fields; electromagnetic radiation; liquid crystals; organic materials; polymer liquid crystals; visible light

Citation Formats

Sheetah, Ghadah H., Liu, Qingkun, Senyuk, Bohdan, Fleury, Blaise, and Smalyukh, Ivan. I. Electric switching of visible and infrared transmission using liquid crystals co-doped with plasmonic gold nanorods and dichroic dyes. United States: N. p., 2018. Web. doi:10.1364/OE.26.022264.
Sheetah, Ghadah H., Liu, Qingkun, Senyuk, Bohdan, Fleury, Blaise, & Smalyukh, Ivan. I. Electric switching of visible and infrared transmission using liquid crystals co-doped with plasmonic gold nanorods and dichroic dyes. United States. doi:10.1364/OE.26.022264.
Sheetah, Ghadah H., Liu, Qingkun, Senyuk, Bohdan, Fleury, Blaise, and Smalyukh, Ivan. I. Mon . "Electric switching of visible and infrared transmission using liquid crystals co-doped with plasmonic gold nanorods and dichroic dyes". United States. doi:10.1364/OE.26.022264.
@article{osti_1464334,
title = {Electric switching of visible and infrared transmission using liquid crystals co-doped with plasmonic gold nanorods and dichroic dyes},
author = {Sheetah, Ghadah H. and Liu, Qingkun and Senyuk, Bohdan and Fleury, Blaise and Smalyukh, Ivan. I.},
abstractNote = {Smart windows and many other applications require synchronous or alternating facile electric switching of transmitted light intensity in visible and near infrared spectral ranges, but most electrochromic devices suffer from slow, nonuniform switching, high power consumption and limited options for designing spectral characteristics. Here we develop a guest-host mesostructured composite with rod-like dye molecules and plasmonic nanorods spontaneously aligned either parallel or orthogonally to the director of the liquid crystal host. This composite material enables fast, low-voltage electric switching of electromagnetic radiation in visible and infrared ranges, which can be customized depending on the needs of applications, like climate-dependent optimal solar gain control in smart windows.},
doi = {10.1364/OE.26.022264},
journal = {Optics Express},
number = 17,
volume = 26,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1364/OE.26.022264

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Figures / Tables:

Fig. 1. Fig. 1. : TEM imaging of GNRs and extinction spectra of dye molecules and nanoparticles in isotropic solvents. (a-c) TEM images of GNRs with different longitudinal SPR peaks: (a) 780 nm, (b) 1010 nm and (c) 815 nm. GNRs shown in (a) and (b) are coated with a silica shellmore » of average thickness of 21 nm and 25 nm, respectively. Scale bars are 200 nm. (d) Normalized by the maximum intensity extinction spectra of GNRs in water before (red and blue solid lines) and after silica capping (dashed corresponding lines). (e) Normalized by the maximum intensity extinction spectra of dye molecules and PEG-capped GNRs in toluene taken separately (green and orange lines) and when dispersed jointly (black line). Note that the extinction peaks of dye and the longitudinal SPR of GNRs are red-shifted due to the high refractive index of toluene.« less

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    Works referencing / citing this record:

    Perspectives in Liquid-Crystal-Aided Nanotechnology and Nanoscience
    journal, June 2019


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