The effect of Pb doping on the characteristic properties of spin coated ZnO thin films: Wrinkle structures

Multifunctional device based on ZnO:Fe nanostructured films with enhanced UV and ultra-fast ethanol vapour sensing

“…1). Also, the dislocation density and the residual stress tend to raise Fe doping of ZnO, hence this case may indicate biaxial stress which is a very important factor in the formation of dislocation densities and which is consistent with other results on doping of ZnO films [22,45,50]. From calculated data for the texture coefficient, it can be concluded that the degree of orientation of the (002) plane increases with Fe doping (see Table S1).…”

“…From calculated data for the texture coefficient, it can be concluded that the degree of orientation of the (002) plane increases with Fe doping (see Table S1). The slight increase of the parameters a and c in our samples is caused by incorporation of Fe 3 þ ions with different ionic radii [22,33,35,45,50,51].…”

“…Thus, it appears a necessity for the development of efficient methods to control semiconducting oxide properties. One of the most efficient and reliable approaches is the electronical and chemical sensitization by controlled doping of ZnO nanostructures, which demonstrates the capability to improve the sensors sensitivity and selectivity [4,6,8,10,[15][16][17][18][19][20][21][22]. On the other side, the ethanol vapour sensor is one of the most popular devices for biomedical, chemical, pharmaceutical, domestic safety, breathe analysis, and food industry.…”

Flexible Sensory Systems: Structural Approaches

“…Regarding elastic substrate expansion, mechanical stretching [ 48 , 50 ], thermal expansion [ 35 , 51 , 52 ], and solvent swelling [ 53 ] can be used. Materials for the rigid layers used in bilayer systems include Au/Pd (Gold and palladium) [ 54 , 55 ], CNT [ 56 ], GaAs [ 57 ], grapheme [ 58 ], SiNMs [ 59 ], SiNWs [ 60 ], PZT [ 61 ], oxygen–plasma–treated [ 62 ] and ultraviolet/ozone (UVO)–oxidated elastic substrate surfaces [ 63 ], and ZnO [ 64 ]. Rigid layer materials are deposited onto an elastic substrate, to form a bilayer using sputtering [ 54 ], transfer [ 60 ], electroless plating [ 65 ], chemical vapor deposition [ 35 ], surface cross linking through plasma treatment [ 52 ], or UVO irradiation [ 66 , 67 ].…”

Structural, Optical, and Humidity Sensing Performance of Pb-Doped Zno Nanostructure Prepared by Sol-Gel Immersion Method

“…Both films are highly dense and has low pore channel in between the nanostructures. In addition, the increment of diameter after Pb doping may due to substitution of larger ionic radius of Pb 2+ (1.19 Å) replacing the Zn 2+ (0.74 Å) sites [12,13]. The elemental analysis in Fig.…”