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Abstract
In this study we realize functioning electrochromic devices based on colloidal niobium oxide nanocrystals which show dual-band electrochromic behavior, with spectral
selectivity between near-infrared and visible wavelengths. Minimally coloring vanadium
oxide counter electrodes allow for full electrochromic devices that embody the dual-band
electrochromic behavior of the niobium oxide component. The devices are fabricated
using solution processing on both glass and flexible substrates, demonstrating that our
platform has potential for the development of low-cost dual-band electrochromic devices
for dynamic solar control in a variety of form factors and applications.
Supplementary materials
Title
Supporting Information
Description
The supporting information includes the following: Descriptions of Tvis, TLum, TNIR, and
SHGC; Electrochromism of vanadium oxide thin films; Electrochromic Performance of 10x10
cm2 device; Electrochromism of Nb12O29 NCs on ITO-coated PET substrate; Cycling performance of electrochromic device; Device performance comparison table; Cycling Stability
Performance Metrics.
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