Article ID Journal Published Year Pages File Type
6457302 Solar Energy Materials and Solar Cells 2017 6 Pages PDF
Abstract

•Upconversion (UC) Er,Yb-CeO2 hollow spheres by carbonaceous spheres as template.•Both TiO2 and UC hollow spheres assembled to bilayer structure in DSSCs.•Cell efficiency improved 27% compared to the cell without scattering layer.•Improvement due to upconversion, scattering effect and higher dye-loading.

Upconversion (UC) Er, Yb-CeO2 hollow spheres were successfully prepared using carbonaceous spheres as removable template via hydrothermal method for improving the efficiency of dye-sensitized solar cells (DSSCs). Light harvesting efficiency was enhanced 27% due to the upconversion effect, scattering effect and higher dye-loading capacities. It is expected that the work provides a new optimization approach for CeO2 application in DSSCs.

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Physical Sciences and Engineering Chemical Engineering Catalysis
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Novel upconversion Er, Yb-CeO2 hollow spheres as scattering layer materials for efficient dye-sensitized solar cells
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