The effects of copper nanoparticles (CuNP) dispersion on the optical and electrical properties of mesoporous SBA-15 like silica were investigated. Full characterization of the resulting SBA-15-Cu through X-ray diffraction (XRD), thermogravimetry analysis (TGA), scanning electron microscopy (SEM), energy dispersion X-ray fluorescence (ED-XRF), diffuse reflectance (DRS) and Fourier Transform Infrared spectroscopy (FT-IR) revealed marked changes in the structure properties after copper incorporation. Slight decrease in the optical band gap energy in the SBA-15-Cu was also noticed. The shifts towards higher wavelengths are attributed to change in the acceptor capacity level induced by iron nanoparticles. Measurements of Z' and Z" in temperature showed an improvement in proton mobility of SBA-15-Cu. Deeper insights in the capacitance and conductance by impedance spectroscopy measurements over a wide range of frequencies at various temperatures suggest that CuNPs interaction with SBA-15 surface and silanol deprotonation can be, at least partly, responsible for conductance improvement. The above properties make these materials to be regarded as efficient materials for potential applications in electronics.

研究了铜纳米粒子（CuNP）分散液对介孔SBA-15像二氧化硅的光学和电学性质的影响。通过X射线衍射（XRD），热重分析（TGA），扫描电子显微镜（SEM），能量色散X射线荧光（ED-XRF），漫反射率（DRS）和透射电镜对所得SBA-15-Cu进行全面表征傅立叶变换红外光谱（FT-IR）揭示了掺入铜后结构性能的显着变化。还注意到SBA-15-Cu中的光学带隙能量略有下降。向更高波长的转变归因于由铁纳米颗粒诱导的受体容量水平的变化。温度的Z'和Z”的测量表明SBA-15-Cu的质子迁移率提高。通过在各种温度下在很宽的频率范围内进行阻抗谱测量，对电容和电导的更深入了解表明，CuNP与SBA-15表面的相互作用以及硅烷醇的去质子化至少可以部分负责电导率的提高。上述特性使这些材料被认为是电子领域潜在应用的有效材料。