In complementary electrochromic devices (ECDs), replacing nickel oxide (NiO) with iridium oxide (IrO) as a counter electrode can significantly enhance device performance and longevity.
The study compared the optical performance and cycling durability of IrO versus NiO on ITO glass substrates, with IrO achieving a larger optical transmittance modulation (∆T = 50%) compared to NiO (∆T = 32%).
Additionally, IrO demonstrated fast switching times (coloring in 4.8 seconds, bleaching in 1.5 seconds) and maintained its performance even after 1000 cycles, indicating promising potential for future electrochromic applications.
Nanoporous structures improve electrochromic performance by increasing surface area for faster ion/electron transfer, enhancing optical modulation and response time.
The study introduces a new method using vacuum cathodic arc plasma to create WO/NiO electrode films on ITO glass for electrochromic devices, optimizing performance via nanoporous electrodes.
Results show that a 200-nm WO film exhibits impressive ion diffusion and charge capacity, leading to a device with significant optical modulation (46%) and quick switching times (3.1s for coloration, 4.6s for bleaching), maintaining durability over 2500 cycles.
The study focuses on creating an indium-zinc-tin-oxide (IZTO) transparent conductive film using DC reactive magnetron sputtering, evaluating its electrical, structural, and optical properties.
The IZTO film made at 100 W power achieved the lowest resistivity of 5.2 × 10 Ω cm, indicating excellent conductivity.
An electrochromic device (ECD) with a WO₃ electrode and Pt mesh counter-electrode demonstrated a significant optical contrast of 44% with quick switching times of 4.6 s for coloring and 8.1 s for bleaching at 550 nm.
Photoproduct signature: Irradiation of solid hydrogen near 3 K containing NO with vacuum-UV light from synchrotron radiation yields new infrared absorption lines at 1241.7, 1063.6 and 726.