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

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

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

Author(s) -

Jongwook Kim,

Gary K. Ong,

Yang Wang,

Gabriel LeBlanc,

Teresa E. Williams,

Tracy M. Mattox,

Brett A. Helms,

Delia J. Milliron

Publication year - 2015

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/acs.nanolett.5b02197

Subject(s) - electrochromism , materials science , niobium oxide , nanocomposite , electrochromic devices , amorphous solid , nanocrystal , transmittance , optoelectronics , electrode , electrochemistry , nanotechnology , oxide , chemistry , organic chemistry , metallurgy

Two active electrochromic materials, vacancy-doped tungsten oxide (WO(3-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 WO(3-x) nanocrystal framework effectively pumps charge out of the normally sluggish NbOx glass. The material is durable for at least 2000 electrochemical cycles.

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