Mixed Solvents Assisted Flame Spray Pyrolysis Synthesis of TiO2 Hierarchically Porous Hollow Spheres for Dye-Sensitized Solar Cells

2013 ◽  
Vol 52 (32) ◽  
pp. 11029-11035 ◽  
Author(s):  
Junchao Huo ◽  
Yanjie Hu ◽  
Hao Jiang ◽  
Wenjuan Huang ◽  
Yunfeng Li ◽  
...  
2015 ◽  
Vol 15 (10) ◽  
pp. 8295-8298 ◽  
Author(s):  
Su Kyung Park ◽  
Soong-Hyuck Suh ◽  
Min Woo Lee ◽  
Tae Kwan Yun ◽  
Jae Young Bae

TiO2 hollow spheres were successfully synthesized using poly styrene as the template. Dyesensitized solar cells are fabricated based on double-layered composite films of TiO2 nanoparticles and TiO2 hollow spheres. The photoelectric conversion performances of Dye-sensitized solar cells based on TiO2 nanoparticles/TiO2 nanoparticles, TiO2 nanoparticles/TiO2 hollow spheres and TiO2 hollow spheres/TiO2 hollow spheres double-layered films are investigated, and their photoelectric conversion efficiencies were determined to 4.52, 7.10 and 5.48%, respectively. Dye-sensitized solar cells based on double layered composite films of TiO2 nanoparticles and TiO2 hollow spheres exhibit the highest photo-electric conversion efficiency mainly due to the combined effect of two factors, the high light scattering of over-layer hollow spheres that enhance harvesting light of the Dye-sensitized solar cells and the under-layer TiO2 nanoparticle layer that ensures good electronic contact between TiO2 film and FTO conducting glass. The double layered composite TiO2 film electrodes are a promising development in enhancing the performance of dye-sensitized solar cells.


RSC Advances ◽  
2014 ◽  
Vol 4 (55) ◽  
pp. 29099-29106 ◽  
Author(s):  
Bing-Xin Lei ◽  
Li-Li Zeng ◽  
Ping Zhang ◽  
Xiao-Feng Zheng ◽  
Yan-Shan Wu ◽  
...  

Hierarchically porous N–F codoped TiO2 hollow spheres were prepared via an in situ bubbling method for solar energy conversion application.


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