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Beilstein J. Nanotechnol. 2023, 14, 175–189, doi:10.3762/bjnano.14.18
Figure 1: (a) Schematic of the metal tip–gap–semiconductor sample. (b) Energy band diagram of the metal–gap–s...
Figure 2: Schematic model of carrier emission and capture between the interface and bulk states of the semico...
Figure 3: (a) Equivalent circuit of the impedance model (SRH model) of the MIS structure. (b) Equivalent circ...
Figure 4: Block diagram of AFM and high–low KPFS. In low KPFS, a signal Vac·cos 2πfmt is generated by the osc...
Figure 5: Schematic of the silicon substrate with three types of impurity pattern, that is, n-, p-, and, n+-t...
Figure 6: (a) Surface topography and (b) CPD image of the pn-patterned Si surface. The CPD image was obtained...
Figure 7: (a) Δf(fm)–Vdc curves and (b) Δf–Vdc curves obtained on the n-type Si surface. The tip–sample dista...
Figure 8: Δf(fm)–Vdc curves obtained on the n-type Si surface at (a) Δfset = −200 Hz and (b) Δfset = −100 Hz....
Figure 9: (a) Δf(fm)–Vdc curves and (b) Δf–Vdc curves obtained on the p-type Si surface. The tip–sample dista...
Beilstein J. Nanotechnol. 2022, 13, 712–720, doi:10.3762/bjnano.13.63
Figure 1: Schematics of AC-KPFM for direct SPV measurements. (a) Block diagram of AC-KPFM in FM mode. FG is a...
Figure 2: PSD of Δf under modulated UV laser illumination (fm = 100 Hz) with (a) VAC = 0 and (b) VAC = 2/π VS...
Figure 3: AC-KPFM imaging for SPV measurement. (a) Topographic and (b) SPV images of TiO2(110) surface. (c) S...
Figure 4: KPFS measurement on a TiO2(110) surface. KPFS data (blue dots) was fitted by Δf(V) = a1V2 + b1 (red...
Beilstein J. Nanotechnol. 2019, 10, 1228–1236, doi:10.3762/bjnano.10.122
Figure 1: Ball model of TiO2(110)-(1 × 1) surface with two step structures of and .
Figure 2: AFM/KPFM images (70 × 70 nm2) of the TiO2(110) surface after O2 exposure. (a) Topographic image and...
Figure 3: AFM/KPFM images (40 × 40 nm2) of TiO2 after O2 exposure, showing and steps. (a) Topographic image...
Figure 4: Schematic model for interpreting the local surface potential at the steps that combines the upward ...
Figure 5: DFT simulation of the local electrostatic potential for the a) , b) , c) reduced , and d) steps. B...