CAJ | 학술논문

采用商用P25TiO2为原料制备纳米多孔TiO2电极，用水热法在多孔TiO2表面包覆SrTiO3。采用X射线衍射仪、扫描电子显微镜及紫外-可见光谱仪对TiO 2/SrTiO 3薄膜电极进行表征。探讨了水热反应温度对TiO 2/SrTiO 3薄膜电极组装染料敏化太阳能电池（DSSC）的光电化学性能影响。结果表明：在纳米多孔TiO2电极表面生成了均匀的SrTiO 3包覆层，且SrTiO 3包覆的样品吸收边有红移；与TiO 2薄膜电极相比，不同水热反应温度下制备的TiO 2/SrTiO 3薄膜电极组装DSSC的光电转换效率均有所提高，180℃时全光转换效率提高了24%。
채용상용P25TiO2위원료제비납미다공TiO2전겁，용수열법재다공TiO2표면포복SrTiO3。채용X사선연사의、소묘전자현미경급자외-가견광보의대TiO 2/SrTiO 3박막전겁진행표정。탐토료수열반응온도대TiO 2/SrTiO 3박막전겁조장염료민화태양능전지（DSSC）적광전화학성능영향。결과표명：재납미다공TiO2전겁표면생성료균균적SrTiO 3포복층，차SrTiO 3포복적양품흡수변유홍이；여TiO 2박막전겁상비，불동수열반응온도하제비적TiO 2/SrTiO 3박막전겁조장DSSC적광전전환효솔균유소제고，180℃시전광전환효솔제고료24%。
Nanoporous TiO2electrodes were prepared with commercial P25 TiO2 as raw material and coated by SrTiO3 with the hydrothermal method. The as-prepared TiO2/SrTiO3 film electrodes were characterized by X-ray diffractometer, scanning electron microscope and ultraviolet-visible (UV-Vis) spectrometer. The effects of hydrothermal reaction temperature on the photoelectrochemical properties of dye-sensitized solar cells (DSSC) based on TiO2/SrTiO3 film electrodes were studied. The results show that a uniformed SrTiO3 layer is formed on the surface of nanoporous TiO2electrodes. The absorption edge of the samples coated by SrTiO3is red shifted. Compared to TiO2 film electrodes, the conversion efficiencies of DSSCs based on TiO2/SrTiO3film electrodes prepared with different hydrothermal reaction temperature all rise. When hydrothermal reaction temperature is 180℃, overall energy conversion efficiency increases by 24%.