Efficient Light Scattering from Nanochains Encapsulated in SnO₂ Hollow Spheres

摘要

In this work, we demonstrated the synthesis of SnO2 nanochains@hollow spheres homostructure bytaking mesoporous silica microsphere (MS) as template. The filling degree of SnO2 nanochain insidethe hollow spheres could be easily tuned simply by tuning the structure and chain length of SnO2loaded within MS mesopores. The optimized SnO2 nanochains@hollow spheres homostructure, whenapplied as the scattering layer in DSSCs, can remarkably increase the photocurrent of the cell due tothe multiple light reflecting and scattering occurred in the unique hierarchical nanostructures. Moresignificantly, the conversion efficiency possessed a 32.2% improvement compared to that derived fromTiO2 nanorod arrays.