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Electrochromic properties of WNRAs prepared with different RMo/W (black line: 0, red line: 1:40, green line: 1:20) (a) UV-vis transmittance spectra in colored and bleached states measured at ±3.0 V for 100 s; (b,c) switching time characteristics between the colored and bleached states measured at ±3.0 V with a wavelength of 660 nm; (d) coloration efficiency at 660 nm.
