Photoelectrochemical properties of plasma-induced nanostructured tungsten oxide

Rapid growth of nanostructure on tungsten thin film by exposure to helium plasma

“…Owing to the formation of FN on the material surface, various properties are largely changed in electronics, mechanics, magnetics, optics, etc [16][17][18][19][20]. Although the property changes caused by the formation of FNs have a detrimental effect on fusion reactor performance and operation [21,22], they have potential applications in many fields and devices, such as solar absorbers [18,19,23], photocatalysis [24][25][26], gas sensors [27], and so on. Petty et al first used a magnetron sputtering device to create a tungsten nanostructure [11].…”

p–n junction formation between CoPi and α-Fe2O3 layers enhanced photo-charge separation and catalytic efficiencies for efficient visible-light-driven water oxidation

“…4,5 Low cost and low toxic metal oxide n-type semiconductors (SCs) have attracted considerable attention as photoanode materials for PEC water oxidation. In particular, n-type SC photoanodes with narrow band gaps ( E g ≦ 2.8 eV) for visible-light-driven water oxidation, such as α-Fe 2 O 3 ( E g = 2.0–2.1 eV), 6,7 BiVO 4 (≈2.4 eV), 8–10 and WO 3 (≈2.7 eV), 11–13 have been extensively studied in this context. Among these, α-Fe 2 O 3 is the photoanode material with the smallest band gap, through which a high solar-to-hydrogen conversion efficiency is theoretically expected owing to the potential for efficient light absorption in a longer wavelength region.…”

Growth origin of large-scale fiberform nanostructures in He–W co-deposition environment

“…Improved performance of gas sensor for hydrogen gas detection has been demonstrated on oxidized W fuzz 19 . Photocatalytic/photoelectrochemical application has been explored on oxidized W fuzz with methylene blue decomposition 20 , 21 and with oxygen evolution reaction (OER) 22 , 23 .…”