Strain-induced bimetallic nanoparticles-TiO2 nanohybrids for harvesting light energy

Mixed-Phase TiO2 Nanotube–Nanorod Hybrid Arrays for Memory-Based Resistive Switching Devices

“…However, after the grafting of Pd–Pt nanoparticles, a 11% decrease is observed in the anatase phase, although the crystallite sizes of both phases are increased. The crystallite sizes of the nanotubes also vary with the grafting of MNPs and are calculated by Scherrer’s equation, as revealed in eq where D is the mean crystallite size of the domains, k is a dimensional form factor (assumed to be 1), λ is the X-ray wavelength of 0.154 nm (Cu Kα source), β is the peak width of half of the maximum intensity of the radians, and θ is the Bragg angle.…”

“…The phase compositions of anatase TiO 2 nanotubes are also analyzed using micro-Raman spectroscopy, as shown in Figure a. The five peaks appear at 144.5, 197.5, 396.1, 517, and 639.6 cm –1 corresponding to the E 1g , E 2g , B 1g , A 2g , and E 3g modes …”

“…The TiO 2 nanotubes were synthesized with electrochemical anodization of 1-mm-thick titanium (Ti) foils . Before anodization, foils were ultrasonicated by acetone (SRL, India, 99% pure), isopropyl alcohol (SRL, India, 99.5% pure), and deionized (DI) water for 10–15 min, respectively.…”

“…In that context, MxPh-TNs can be further explored by grafting of metal nanoparticles (MNPs). Grafting of MNPs over MxPh-TNs modifies the interface and electronic interaction by the formation of defects . The interfacial electronic interaction shows the change in the Schottky barrier at the interface.…”

“…The interfacial electronic interaction shows the change in the Schottky barrier at the interface. These defects induce shifts in the intrinsic interatomic distance that may modify the structures of MxPh-TNs . The modified structures considerably change the electronic properties of MxPh-TNs at the interface that can further be related to device studies.…”