溶胶-凝胶法制备二氧化钛 (TiO2) 颗粒及其在钙钛矿太阳能电池中的应用.

Titanium dioxide (TiO2) particles were prepared by two different methods based on the sol-gel method, and the methyl orange degradation experiments showed that the catalytic degradation performance of TiO2 particles prepared by the two-step ethanol method was better than that of TiO2 prepared by the one-step method, and the surface morphology of the TiO2 was characterized by scanning electron microscopy (SEM), and the surface morphology of TiO2 particles prepared by one-step method was characterized by X-ray diffraction (XRD) and the characterization of chalcogenide photovoltaic device performance shows that the TiO2 particles prepared by the one-step method mainly show anatase phase, and its application in chalcogenide solar cells under the environment of air, the photovoltaic conversion efficiency (PCE) of the cell reaches 12.7%, while the TiO2 particles prepared by the two-step method appear anatase and rutile two kinds of diffraction peaks, and the mixed-crystalline form makes the PCE of chalcogenide cells decreased to 9.4%, so it can be concluded that TiO2 prepared by one-step method can improve the performance of calcite solar cells when used as an electron transport layer. [ABSTRACT FROM AUTHOR]