SiO₂: A Novel Electrolyte for High-Performance All-Solid-State Electrochromic Devices

Abstract

For the practical application of electrochromic devices (ECDs), the development and preparation of high-performance electrolyte materials is one of the urgent problems to be solved. In this work, an allsolid-state ECD with the integrated structure of glass/ITO/WO 3 /Li/SiO 2 / NiO/ITO has been prepared by the magnetron sputtering method. The amorphous SiO 2 film prepared by pulsed direct current reactive magnetron sputtering was used as the electrolyte layer in the ECD for the first time and shows promising potential due to its ultrahigh transparency, good intrinsic electronic insulation, and loose structure for fast ion conduction. The ECD exhibits low leakage current density (8.5 μA cm −2 for bleaching and 43.4 μA cm −2 for coloring), high optical modulation (ΔT = 71.9% at 707 nm), fast response speed (1.1 s for the bleaching process and 8.5 s for the coloring process), excellent cycle stability, and high coloration efficiency (126.4 cm 2 C −1 ). This work not only indicates that SiO 2 as a dielectric material can be used as the electrolyte layer in all-solid-state ECDs but also provides new avenues in the selection of electrolyte materials for the preparation of high-performance ECDs.

In Situ Growth of Lead-Free Cs2CuBr4 Perovskite Quantum Dots in KIT-6 Mesoporous Molecular Sieve for CO2 Adsorption, Activation, and Reduction

“…Figure e,f displays the high-resolution XPS spectra of Si 2p and O 1s, respectively. It can be seen that only one symmetric peak could be fitted for both Si 2p and O 1s spectra, which are located at the binding energies of 104.0 and 533.2 eV, corresponding to Si 4+ and O 2– in SiO 2 , respectively. , …”

“…It can be seen that only one symmetric peak could be fitted for both Si 2p and O 1s spectra, which are located at the binding energies of 104.0 and 533.2 eV, corresponding to Si 4+ and O 2− in SiO 2 , respectively. 33,34 To assess the photocatalytic performance of the developed CCB@KIT-6 heterostructure, photocatalytic CO 2 reduction tests were carried out under simulated solar light irradiation. The activities of 40% CCB@KIT-6 under various conditions are presented in Figure 5a.…”

Study on the effect of chain extenders on aliphatic polyurethane and its application

“…Laminated glass consists of a polymer elastic layer and glass. [1][2][3][4] It is significant to investigate the performance between polymer film and glass. Common intermediate films used in laminated glass include polyvinyl butyral (PVB) and others.…”

“…Laminated glass consists of a polymer elastic layer and glass 1–4 . It is significant to investigate the performance between polymer film and glass.…”

A Lithium‐Salt‐Free, Hydrophobic, Solid‐State Poly(Ionic Liquid) Electrolyte Enables Rapid Assembly of Unencapsulated, Removable Electrochromic “Window Tint Film”

“…[11,12] The electrolyte plays a vital role in balancing charges and facilitating ion transport. [13,14] Classical liquid-state, high-ionic-conductivity electrolytes for EC devices require rigorous assembly and encapsulation conditions due to the hygroscopicity of lithium salts. [15,16] Moreover, the fluidity and flammability of such liquidstate electrolytes lead to elevated sealing, safety, and repairability demands.…”