Photochromic inorganic–organic complex derived from low-cost deep eutectic solvents with tunable photocurrent responses and photocatalytic properties

Abstract

A photochromic inorganic–organic complex |C10H10N2|[GaF(C2O4)2] derived from low-cost deep-eutectic solvents possesses tunable photocurrent responses and photocatalytic activities.

Recent progress in polyoxometalate–viologen photochromic hybrids: structural design, photochromic mechanism, and applications

“…104,105 This work provides an alternative way to manipulate the electronic properties of 2D semiconductors via external stimuli rather than changing chemical composition, and has reference significance for the later research. [106][107][108][109][110][111][112][113]…”

Ionothermal synthesis of a photochromic inorganic–organic complex for colorimetric and portable UV index indication and UVB detection

“…The observed peaks are similar to the characteristic absorption of one-electron reduced species of viologen compounds via photoinduced electron transfer (PIET). 16,28 In situ time dependent UV-Vis spectra monitored at 599 nm indicated that the PIET process followed a rst order reaction kinetics, with a rate constant k obs of 0.195 s À1 , which was much higher than that of some reported viologen-based photochromic compounds (2.324 Â 10 À4 s À1 to 1.5 Â 10 À2 s À1 ), 31,32 indicating its superior photoresponsive rate (Table S3 †). NEU20-P could be retained under ambient conditions for several months with no naked eyedetectable color change, indicating an ultralong-lived chargeseparated state and excellent colored stability upon UV irradiation, which may be attributed to the p-p stacking interactions and the dense packing mode of bpy/H 2 bpy 2+ dications that stabilized the generated radicals and prevented the electron transfer between the radicals and inorganic clusters.…”

“…However, the application of the PV-MOF-based detectors is still limited by some issues, particularly the difficulties in synthesis, e.g., requirement of a well elaborated structural design, complicated ligand synthesis, high cost and high toxicity raw materials. 16 Therefore, it is of great signicance to nd a convenient and cost-effective synthetic route to construct UV light monitors based on photochromic materials. The ionothermal synthesis method has been proven to be an efficient synthetic route for exploring novel inorganic-organic hybrid materials, such as zeolites and metal organic frameworks.…”

Transforming nature into the next generation of bio-based flexible devices: New avenues using deep eutectic systems

“…161 Based on these concepts, multicomponent photochromic inorganic-organic complexes have been developed, which showed photochromic behavior in DESs with a wide range of photo-response from UV to visible light and an ultralong-lived charge-separated state. 176 Monomers with dual functionalities able to create intricate and hierarchical networks by two different mechanisms of polymerization operating in the same material (e.g., by free-radicals and polycondensation or interpenetrated networks) may serve to further tune the mechanical properties of the flexible devices and provide transient and degradable crosslinks responsive to stimuli, or to solidify the precursors in additive manufacturing technologies. 55 Most of the DESs' components described in this Perspective are hygroscopic and deliquescent, and some of the flexible materials derived from them as well.…”