Structural, optical and electronic properties of Fe doped ZnO thin films

Metal-organo-zinc oxide materials: Investigation on the structural, optical and electrical properties

“…This increase in the λ max value accounts for shifts in the band gap towards lower energy after ZnO modification (Table S2). This decrease in the band gap is attributed to metal incorporation [41][42], and can be explained in terms of increase in the electron density around Fe o NPs, as already reported [43]. Plotting (αhν) 2 versus hν (Fig.…”

A Nano‐Wrinkled Zn0.92Fe0.08O Thin Film Developed Using a High‐RPM Electro‐Spin Patterning Technique via Sol‐Gel Route For Methane Sensing

“…Recent literatures reported to improved gas sensing properties for ethanol, ammonia and carbon dioxide by the changing in the nanostructured in the ZnO thin film For example, ZnO hollow 1D nanofibers used in the sensing of ethanol (C 2 H 6 O), ZnO nanoparticles/ reduced graphene oxide bilayer thin film showed improved sensitivity for ammonia (NH 3 ), Sodium doped ZnO thin film showed enhance sensitivity for carbon dioxide (CO 2 ). As, Zinc Oxide is the promising material for the sensing of methane (CH 4 ), carbon monoxide (CO) and hydrogen sulphide (H 2 S) and Fe doped ZnO thin films are shown to have superior sensing activity than pure ZnO due to enhanced formation the oxygen species on surface at the ambient oxygen partial pressures ,. However there are several reports on the formation of wrinkled structured thin films through mechanical and chemical process –.…”

“…ZnO nanofibers, nanoplates, nanoflowers were successfully synthesized by electro spinning method ,. This method is low cost and simple in operation with controlled thickness formation of the grown films than sputter techniques such as RF and DC, Magnetron sputter, Pulse vapor deposition and Thermal evaporation ,,. As up to 10% Fe ions doping in ZnO does not make any change in the crystal structure of the host zinc oxide lattice, we utilized low cast and simple electro spinning method by varying the spin rpm to make 8% Fe doped ZnO film.…”

“…As up to 10% Fe ions doping in ZnO does not make any change in the crystal structure of the host zinc oxide lattice, we utilized low cast and simple electro spinning method by varying the spin rpm to make 8% Fe doped ZnO film. Band gap of the material is also reported to decrease with increase in Fe doping, and Fe doped zinc oxide thin films are known to have enhance sensitivity for methane sensing . We also tried to fabricated 3%, 5% and 8% Fe‐ZnO films, but wrinkled structured films were developed only for 8% Fe doped ZnO coat and this was unique feature of the Fe‐ZnO system.…”

Enhanced photocatalytic activity of sol–gel derived ZnO via the co-doping process

“…However, ZnO has several drawbacks such as fast recombination of the photogenerated electron-hole pair and large band gap [13]. Consequently, various research efforts have been exerted into improving ZnO [14][15][16]. One of the interesting approaches is to dope the ZnO, so that it narrows its band gap and extends the light absorption in the ultraviolet-visible region [17].…”