Nanocomposite Architecture for Rapid, Spectrally-Selective Electrochromic Modulation of Solar Transmittance

Jongwook Kim; Gary K. Ong; Yang Wang; Gabriel Leblanc; Teresa E. Williams; Tracy M. Mattox; Brett A. Helms; Delia J. Milliron

doi:10.1021/acs.nanolett.5b02197

Nanocomposite Architecture for Rapid, Spectrally-Selective Electrochromic Modulation of Solar Transmittance

Jongwook Kim
, Gary K. Ong
, Yang Wang
, Gabriel Leblanc
, Teresa E. Williams
, Tracy M. Mattox
, Brett A. Helms
, Delia J. Milliron

University of Texas at Austin
Department of Materials Science and Engineering
University of California, Berkeley
Ernest Orlando Lawrence Berkeley National Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

Two active electrochromic materials, vacancy-doped tungsten oxide (WO_3-x) nanocrystals and amorphous niobium oxide (NbO_x) glass are arranged into a mesostructured architecture. In a strategy applicable across electrochemical applications, the critical dimensions and interfacial connections in the nanocomposite are designed to optimize pathways for electrochemical charging and discharging. The result is an unprecedented optical range for modulation of visible and near-infrared solar radiation with rapid switching kinetics that indicate the WO_3-x nanocrystal framework effectively pumps charge out of the normally sluggish NbO_x glass. The material is durable for at least 2000 electrochemical cycles.

Original language	English
Pages (from-to)	5574-5579
Number of pages	6
Journal	Nano Letters
Volume	15
Issue number	8
DOIs	https://doi.org/10.1021/acs.nanolett.5b02197
Publication status	Published - 12 Aug 2015
Externally published	Yes

Keywords

block copolymer templated assembly
electrochromic
nanocomposite architecture
plasmonic nanocrystals

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10.1021/acs.nanolett.5b02197

Cite this

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title = "Nanocomposite Architecture for Rapid, Spectrally-Selective Electrochromic Modulation of Solar Transmittance",

abstract = "Two active electrochromic materials, vacancy-doped tungsten oxide (WO3-x) nanocrystals and amorphous niobium oxide (NbOx) glass are arranged into a mesostructured architecture. In a strategy applicable across electrochemical applications, the critical dimensions and interfacial connections in the nanocomposite are designed to optimize pathways for electrochemical charging and discharging. The result is an unprecedented optical range for modulation of visible and near-infrared solar radiation with rapid switching kinetics that indicate the WO3-x nanocrystal framework effectively pumps charge out of the normally sluggish NbOx glass. The material is durable for at least 2000 electrochemical cycles.",

keywords = "block copolymer templated assembly, electrochromic, nanocomposite architecture, plasmonic nanocrystals",

author = "Jongwook Kim and Ong, \{Gary K.\} and Yang Wang and Gabriel Leblanc and Williams, \{Teresa E.\} and Mattox, \{Tracy M.\} and Helms, \{Brett A.\} and Milliron, \{Delia J.\}",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

month = aug,

day = "12",

doi = "10.1021/acs.nanolett.5b02197",

language = "English",

volume = "15",

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journal = "Nano Letters",

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TY - JOUR

T1 - Nanocomposite Architecture for Rapid, Spectrally-Selective Electrochromic Modulation of Solar Transmittance

AU - Kim, Jongwook

AU - Ong, Gary K.

AU - Wang, Yang

AU - Leblanc, Gabriel

AU - Williams, Teresa E.

AU - Mattox, Tracy M.

AU - Helms, Brett A.

AU - Milliron, Delia J.

PY - 2015/8/12

Y1 - 2015/8/12

N2 - Two active electrochromic materials, vacancy-doped tungsten oxide (WO3-x) nanocrystals and amorphous niobium oxide (NbOx) glass are arranged into a mesostructured architecture. In a strategy applicable across electrochemical applications, the critical dimensions and interfacial connections in the nanocomposite are designed to optimize pathways for electrochemical charging and discharging. The result is an unprecedented optical range for modulation of visible and near-infrared solar radiation with rapid switching kinetics that indicate the WO3-x nanocrystal framework effectively pumps charge out of the normally sluggish NbOx glass. The material is durable for at least 2000 electrochemical cycles.

AB - Two active electrochromic materials, vacancy-doped tungsten oxide (WO3-x) nanocrystals and amorphous niobium oxide (NbOx) glass are arranged into a mesostructured architecture. In a strategy applicable across electrochemical applications, the critical dimensions and interfacial connections in the nanocomposite are designed to optimize pathways for electrochemical charging and discharging. The result is an unprecedented optical range for modulation of visible and near-infrared solar radiation with rapid switching kinetics that indicate the WO3-x nanocrystal framework effectively pumps charge out of the normally sluggish NbOx glass. The material is durable for at least 2000 electrochemical cycles.

KW - block copolymer templated assembly

KW - electrochromic

KW - nanocomposite architecture

KW - plasmonic nanocrystals

U2 - 10.1021/acs.nanolett.5b02197

DO - 10.1021/acs.nanolett.5b02197

M3 - Article

AN - SCOPUS:84939233226

SN - 1530-6984

VL - 15

SP - 5574

EP - 5579

JO - Nano Letters

JF - Nano Letters

IS - 8

ER -

Nanocomposite Architecture for Rapid, Spectrally-Selective Electrochromic Modulation of Solar Transmittance

Abstract

Keywords

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