To study the effect of the modification of the iron surface on the optical properties of the sample, the diffuse reflection spectrum (DRS) of the solid sample was tested as shown in Figure 3-3 (a). Compared to FL-MS, it can be observed that the absorption of Fe-FL-MS in the visible region is significantly improved. At the same time, the edge of the Fe-FL-MS absorbent band moves slightly towards the blue, allowing Fe-FL-MS to react better to visible light and to increase the forbidden band to recombine the support. According toformula ahv = A (v-Eg) hn / 2, the band gap of the FL-MS and Fe-FL-MS samples is calculated at 1.61 eV and 1.74 eV, respectively, and the band gap of the sample is increased by 0, iron 13eV after surface modification. According to the diagram of the Schottky curve 3-3 (b), the position of the conduction band of the sample was found to be negatively shifted by 0.13 eV, which exactly corresponds to the change in the forbidden band. After gluing, the change in position of the conduction tape is shown in Figure 3-3 (c). Show off. Thus, the modification of the surface of the wrought iron improves the light absorption capacity and the low light generation capacity to recover the electrons from the MoS2 sample in several layers.
To study the effect of the modification of the iron surface on the optical properties of the sample, the diffuse reflection spectrum (DRS) of the solid sample was tested as shown in Figure 3-3 (a). Compared to FL-MS, it can be observed that the absorption of Fe-FL-MS in the visible region is significantly improved. At the same time, the edge of the Fe-FL-MS absorbent band moves slightly towards the blue, allowing Fe-FL-MS to react better to visible light and to increase the forbidden band to recombine the support. According to<br>formula ahv = A (v-Eg) hn / 2, the band gap of the FL-MS and Fe-FL-MS samples is calculated at 1.61 eV and 1.74 eV, respectively, and the band gap of the sample is increased by 0, iron 13eV after surface modification. According to the diagram of the Schottky curve 3-3 (b), the position of the conduction band of the sample was found to be negatively shifted by 0.13 eV, which exactly corresponds to the change in the forbidden band. After gluing, the change in position of the conduction tape is shown in Figure 3-3 (c). Show off. Thus, the modification of the surface of the wrought iron improves the light absorption capacity and the low light generation capacity to recover the electrons from the MoS2 sample in several layers.
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