TiO2/SnO2复合空心球在染料敏化太阳能电池中的应用  

TiO2/SnO2 composite hollow spheres for dye-sensitized solar cells

作　　者：叶信余 杨丽娟 陈红 吴阳洪 雷炳新[1] 孙振范[1] YE Xin-yu;YANG Li-juan;CHEN Hong;WU Yang-hong;LEI Bing-xin;SUN Zhen-fan(School of Chemistry and Chemical Engineering,Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province,Hainan Normal University,Haikou 571158,China)

机构地区：[1]海南师范大学化学与化工学院海南省电化学储能与能量转换重点实验室,海南海口571158

出　　处：《分子科学学报》2020年第2期118-124,I0003,共8页Journal of Molecular Science

基　　金：国家自然科学基金资助项目(21965013);海南省高等学校科学研究项目(Hnky2019ZD-16);大学生创新训练计划项目(201711658003).

摘　　要：采用模板辅助法制备了SnO2/TiO2复合空心球,样品直径为1.5~4.0μm,比表面积达到了92.9 m^2·g^-1,复合空心球表现出优越的光散射性能.以这种复合空心球作为染料敏化太阳能电池的光阳极,电池的光电转换效率可达到7.72%,高于SnO2微米球(2.70%)和TiO2微米球(6.26%).此外,以锐钛矿型TiO2纳米晶作为底层,SnO2/TiO2复合空心球作为光散射层制备的双层结构光阳极,电池光电转换效率进一步提升至8.43%.TiO2/SnO2 composite hollow spheres with diameters of 1.5~4.0μm are prepared by template-assisted method.TiO2/SnO2 composite hollow spheres with the specific surface area of 92.9 m^2·g^-1 display excellent light scattering property.The power conversion efficiency of dye-sensitized solar cell based TiO2/SnO2 composite hollow spheres is 7.72%,which is higher than those of DSSC with SnO2 microspheres photoanode(2.70%)and DSSC with TiO2 microspheres photoanode(6.26%).Furthermore,a bilayer structure photoanode is designed with anatase TiO2 nanocrystals as the bottom layer and SnO2/TiO2 composite hollow spheres as the light scattering layer,which exhibits an improved power conversion efficiency of 8.43%.

关 键 词：染料敏化太阳能电池 二氧化钛 二氧化锡 空心球 双层结构光阳极 

分 类 号：O646[理学—物理化学]