Tin Oxide n- type Semiconductor Inverted to p- type Semiconductor Prepared by Sol-gel Method

Influence of fluorine doping on the microstructure, optical and electrical properties of SnO2 nanoparticles

“…These complex impedance measurements were carried out for undoped SnO 2 and FTO 1 at.% at different temperatures. The plots have the shape of semicircles arcs, indicating that the grains are homogenous in size for different doping rates [43]. It can be seen from Fig.…”

Enhanced Photoelectrocatalytic Activity of CuO/CuNb2O6 Heterojunction Photocathodes for Efficient Solar Water Splitting

“…As shown in Figure 5a and b, the Mott‐Schottky (MS) of CNO and CuO photoelectrode films at 1000 Hz was measured, and their flat band potential and carrier density were calculated. In the study, negative slopes were observed, which indicated that CNO and CuO belong to p‐type semiconductors [48] . Moreover, the extrapolated intercepts suggested that the flat‐band potentials of CNO and CuO were 1.17 V vs. RHE and 1.02 V vs. RHE, respectively, corresponding to the starting potential displayed in Figure 7a.…”

“…In the study, negative slopes were observed, which indicated that CNO and CuO belong to p-type semiconductors. [48] Moreover, the extrapolated intercepts suggested that the flat-band potentials of CNO and CuO were 1.17 V vs. RHE and 1.02 V vs. RHE, respectively, corresponding to the starting potential displayed in Figure 7a. This is consistent with the MS of CuO and CNO films measured at different frequencies (Figure S5).…”

Effect of platinum doping on the structural and electrical properties of SnO2thin films

“…Similarly, when the slope of ð1=C ¡ 1=ð2C 0 ÞÞ 2 ÀV graph is negative, the semiconductor device is p-type. [71] It can be seen from Figure 14 that the slope of ð1=C ¡ 1=ð2C 0 ÞÞ 2 ÀV graph is linear and positive, hence, the SBDs are also n-type. The results are also given in Table 4.…”