Work function changes in the Ag deposition on TiO2 (110)

Functionalization of Electrospun Titanium Oxide Nanofibers with Silver Nanoparticles: Strongly Effective Photocatalyst

“…Figure 3, spectra a represents the spectra of the nanofibers obtained due to calcination of Ti(Iso)/PVAc mats. As shown in this spectra, the results affirm formation of pure anatase TiO 2 , the existence of strong diffraction peaks at 2y values of 25 To make it easy, in Fig. 3 we have marked the peaks corresponding to titanium oxide and silver as A and S, respectively.…”

“…The researchers have intensively studied how silver provides titania distinct photocatalytic activity; the mechanism was well explained 15–21 . Many formulations have been introduced for titania/silver composite, for instance, NPs, 17–22 and thin films 23–25 …”

“…[15][16][17][18][19][20][21] Many formulations have been introduced for titania/silver composite, for instance, NPs, [17][18][19][20][21][22] and thin films. [23][24][25] As it is well known, the surface to volume ratio is an important feature for any catalyst. Accordingly, one-dimensional (1D) nanostructures are expected to strongly modify the photocatalytic activity.…”

Influence of the patch field on work function measurements based on the secondary electron emission

“…One of the typical applications of WFS with low biasing voltage is to follow the sub-monolayer thin film growth. 7,8,[11][12][13][14][15][16]23,33 According to the generally accepted theory, at the initial phase of deposition (i.e., for very low coverage) the atoms arriving from the gas phase diffuse along the surface until they meet another adatom or a very small cluster, giving rise to nucleation of islands. At this stage, the number of nucleation centers will increase roughly linearly with the increase of coverage.…”

“…However, WFS can also be performed by the use of any other beam that will provide secondary electron emission. [17][18][19][20][21][22][23][24] Nowadays, these measurements are frequently realized using UV-light in order to provide absolute work function measurement, as it was initially proposed by Park and co-authors. 6 WFS is typically used to follow adsorption and deposition processes in real time.…”