CAJ | 학술논문

以葡萄糖为原料水热合成碳球作为模板剂,将其与TiO2纳米晶共混制备纳米多孔TiO2光阳极。采用场发射电子扫描电镜（SEM）、台阶仪、紫外-可见分光光度计（UV-Vis）等对TiO2薄膜的表面形貌、厚度和散射能力进行表征。研究发现,随着碳球含量的增加,光阳极单位体积内的表面积先增加后减小;薄膜对光的散射能力也呈现同样趋势。采用所制备的光阳极组装染料敏化太阳能电池,性能测试结果表明,随着碳球含量的增加,电池短路电流密度先增加,后减小。当碳球加入量为TiO2纳米晶质量的3%时,电池光电转换效率达到最佳为5.15%。
이포도당위원료수열합성탄구작위모판제,장기여TiO2납미정공혼제비납미다공TiO2광양겁。채용장발사전자소묘전경（SEM）、태계의、자외-가견분광광도계（UV-Vis）등대TiO2박막적표면형모、후도화산사능력진행표정。연구발현,수착탄구함량적증가,광양겁단위체적내적표면적선증가후감소;박막대광적산사능력야정현동양추세。채용소제비적광양겁조장염료민화태양능전지,성능측시결과표명,수착탄구함량적증가,전지단로전류밀도선증가,후감소。당탄구가입량위TiO2납미정질량적3%시,전지광전전환효솔체도최가위5.15%。
Carbon spheres were synthesized by hydrothermal reaction using glucose as raw material. The carbon spheres were used as template so as the prepare mesoporous TiO2 thin film which acted as the photoanode of dye sensitized solar cells. Film thickness, surface morphology and scattering ability of the films were studied u- sing profiler, scanning electron microscopy, and UV-Vis spectroscopy respectively. Photovoltaic performance of the cells was evaluated, and the effect of carbon spheres on the cell performance was studied. It was found that with the increase of contents of carbon spheres, surface area in unit volume of the TiO2 film increased at first, and then decreased; similar trend was also observed in the light scattering ability of the TiO2 film. Due to both of the enlarged surface area and the enhanced light scattering ability, photocurrent density of the solar cell and hence the cell performance was optimized, reaching 5.15% at the testing condition.