Novel electrochromic devices (ECD) of tungsten oxide (WO3) thin film integrated with amorphous silicon germanium photodetector for hydrogen sensor

Effect of growth time on structural, morphological and electrical properties of tungsten oxide nanowire

“…High coloration tungsten oxide nanowires have attracted lots of attention, due to their potential in pH sensing, water splitting, gas sensors, n-type semiconductor, photocatalytic and field emission [6][7][8][9]. Hence tungsten oxide nanowires (NWs) have been synthesized by numerous synthetic approaches such as thermal evaporation, chemical vapor deposition (CVD), solvothermal route and electro spinning method for their electric or electrochemical applications [9][10][11][12]. Liu et al [13] reported on the preparation of tungsten oxide nanowires through a vapor-solid growth process by heating a tungsten wire partially wrapped with boron oxide at 1200 °C.…”

Large-scale synthesis of tungsten oxide nanofibers by electrospinning

“…In the past few years, there are several approaches, such as vapor-liquid-solid [1], the solvothermal route [2], the Langmuir-Blodgett technique [3], the template method [4,5], to prepare one-dimensional nanoscale materials including nanotubes, nanowires, nanobelts, nanorods, and nanocables. Among those inorganic one-dimensional nanoscale materials, various tungsten oxides (WO 3 , WO 2 , and WO 3−x ) as important semiconductors have received great attention because of their promising electrochromic and photochromic properties as well as extensive application in optical devices [6], gas sensors [7][8][9], electrochromic windows [10][11][12], and as photocatalyst [13]. So far, some beneficial techniques for the preparation of one-dimensional nanostructured tungsten oxide have been developed.…”

OPTICAL MULTISENSOR BASED ON W AND Ni OXIDE FILMS FOR THE DETERMINATION OF CO AND H2 CONCENTRATION

“…Покрытые тонким каталитически актив-ным слоем платины или палладия, электро-осажденные пленки WO 3 при действии мо-лекулярного водорода приобретают синюю окраску, интенсивность которой определяется концентрацией водорода в газовой смеси [10][11][12][13]; в отсутствие водорода пленка обесцвечи-вается [14,15]. В водородно-воздушной среде на катализаторе устанавливается равновесный потенциал, который отвечает равенству на ее поверхности тока окисления водорода, по ре-акции Н 2 = 2Н + + 2е -и тока восстановления кислорода, по реакции [16].…”