Low-Spin Fe Redox-Based Prussian Blue with excellent selective dual-band electrochromic modulation and energy-saving applications

Transparent metal oxide interlayer enabling durable and fast-switching zinc anode-based electrochromic devices

“…The configuration of the as-constructed zinc anode-based electrochromic device is shown in Fig. 7a, and its electrochemical reaction can be illustrated in (5) 65 KFe III [Fe II (CN) 6 ] + K + + e − ⇌ K 2 Fe II [Fe II (CN) 6 ]…”

Optical Phenomena in Molecule-Based Magnetic Materials

“…From the dependence of optical density as a function of applied charge density to the film, linear dependencies were fitted, giving η = −25.2(2) cm 2 C –1 and η = −32(1) cm 2 C –1 for blue to black and black to blue changes, respectively . Apart from the high- T c V II/III –Cr III PBAs, the thin film samples of classical Fe III –Fe II PBA were analyzed from the point of electrochromic modulation . Such electrodeposited films for a specific speed of stirring the precursor solution were shown to reveal improved durability within several cyclic voltammetry cycles.…”

“…These materials under different applied potential values reveal four colors of the film including quasi-transparent, blue, green, and yellow. Moreover, due to such complicated changes in the absorption spectrum, by employing the specific electric potential, one can selectively switch between the states transmitting in three distinct modes of operation: transmitting vis and NIR light, only visible light, or being non-transparent in both regions …”

“…156,162,1080,1081 Additionally, it was postulated that if a material combines electrochromic behavior with a long-range magnetic ordering, then modulation of light polarization through the Faraday effect may be achieved. 1082 Therefore, some preliminary studies were performed on opto-magnetic molecule-based materials, especially exploring Prussian blue analogs (PBAs). For instance, the weakly crystalline phases of mixed-valence V II/III −Cr III PBAs, which were synthesized as thin films revealing above-room-temperature critical temperatures of spin ordering, were employed for the observation of electric-field-induced switching of optical absorption (Figure 69).…”

Research on zinc cobaltate porous mesh materials with different percentages of Sm doping: synthesis, structural and capacitive properties analysis

“…However, its electrochemical performance may be affected by insufficient active specific surface area and structural instability during a long charge–discharge process. 7 Therefore, it is necessary to further improve its capacitive performance and storage capacity.…”