This work was supported by the National Key Basic Research Program of China (2013CB922303, 2010CB833103), the National Natural Science Foundation of China (60976073, 11274201, 51231007), the 111 Project (B13029), the National Found for Fostering Talents of Basic Science (J1103212), and the Foundation for Outstanding Young Scientist in Shandong Province (BS2010CL036).
Nanoscale Research Letters
Hybrid solar cells -- Design and construction, Energy conversion, Photovoltaic cells -- Materials, Photovoltaic power generation, Nanostructured materials -- Electric properties
Nanostructures composited of vertical rutile TiO₂ nanorod arrays and Sb₂S₃ nanoparticles were prepared on an F:SnO₂ conductive glass by hydrothermal method and successive ionic layer adsorption and reaction method at low temperature. Sb₂S₃-sensitized TiO₂ nanorod solar cells were assembled using the SB₂S₃-TiO₂ nanostructure as the photoanode and a polysulfide solution as an electrolyte. Annealing effects on the optical and photovoltaic properties of SB₂S₃-TiO₂ nanostructure were studied systematically. As the annealing temperatures increased, a regular red shift of the bandgap of Sb₂S₃ nanoparticles was observed, where the bandgap decreased from 2.25 to 1.73 eV. At the same time, the photovoltaic conversion efficiency for the nanostructured solar cells increased from 0.46% up to 1.47% as a consequence of the annealing effect. This improvement can be explained by considering the changes in the morphology, the crystalline quality, and the optical properties caused by the annealing treatment.
Li, Y., Wei, L., Zhang, R., Chen, Y., Mei, L., & Jiao, J. (2013). Annealing effect on Sb2S3-TiO2 nanostructures for solar cell applications. Nanoscale research letters, 8(1), 1-7.