scholarly journals Ag nanoparticle-decorated SiO2@TiO2 hierarchical microspheres improve the efficiency of dye-sensitized solar cells

Author(s):  
Junchen Sun ◽  
Min Fang ◽  
Weiju Zhu ◽  
Zhenyu Wu ◽  
Cun Li
2012 ◽  
Vol 76 ◽  
pp. 215-218 ◽  
Author(s):  
Ming Liu ◽  
Junyou Yang ◽  
Shuanglong Feng ◽  
Hu Zhu ◽  
Jiansheng Zhang ◽  
...  

2021 ◽  
Vol 9 ◽  
Author(s):  
Yongjian Jiang ◽  
Fengyang Zhao

A novel bunchy TiO2 hierarchical microspheres composite nanostructure with strings of anatase TiO2 hierarchical micro-spheres and rutile nanobelts framework (HSN) was synthesized via an one-pot hydrothermal process. This new structure presents great specific surface area, large pore size distribution, homogeneous three-dimensional (3D) structure, high crystallinity and excellent light scattering performance simultaneously. The bi-layer photoanode film was successfully prepared which TiO2 P25 as absorption layer and HSN as an efficient scattering layer on the top of TiO2 P25 film in dye sensitized solar cells (DSSC). The bi-layer DSSC taken on a great progress in the power conversion efficiency (PCE) achieved 8.08%. However, the PCE of single and double layer TiO2 film DSSCs just showed 6.72% and 3.67% respectively. Such improvement was mainly because of the efficient scattering centers (HSN) which can bring the enhanced dye loading, fast charge transfer and excellent light harvesting efficiency.


2014 ◽  
Vol 2 (8) ◽  
pp. 1381-1385 ◽  
Author(s):  
Ziming He ◽  
Jing Liu ◽  
Jianwei Miao ◽  
Bin Liu ◽  
Timothy Thatt Yang Tan

A simple solvothermal strategy is presented to prepare morphology-tunable hierarchical TiO2 microspheres, and the microsphere-based photoanode exhibited a power conversion efficiency of 7.95%.


Nanoscale ◽  
2014 ◽  
Vol 6 (10) ◽  
pp. 5410-5415 ◽  
Author(s):  
Quanhong Chang ◽  
Zhenping Wang ◽  
Jinzhong Wang ◽  
Yuan Yan ◽  
Zhoujing Ma ◽  
...  

Three-dimensional Ag nanoparticle/GNs hybrids as highly efficient counter electrode materials for dye sensitized solar cells are described, highlighting the Ag nanoparticles as zero-dimensional nanospacers inserting into GNs to lift the interspacing layer between individual GNs.


RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 16678-16683 ◽  
Author(s):  
Xiaohui Kang ◽  
Chunyang Jia ◽  
Zhongquan Wan ◽  
Jia Zhuang ◽  
Juan Feng

A novel tri-layered ZnO nanostructure, consisting of ZnO nanowires as the underlayer, small ZnO hierarchical microspheres as the interlayer and large ZnO hierarchical microspheres as the overlayer, was designed and studied as a photoanode for dye-sensitized solar cells.


2014 ◽  
Vol 1 (2) ◽  
pp. 025505 ◽  
Author(s):  
Hsin-Han Huang ◽  
Haoming Chang ◽  
Hsiao-Wei Liu ◽  
Ching-Wen Hsu ◽  
I-Chung Chiu ◽  
...  

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Chanu Photiphitak ◽  
Pattana Rakkwamsuk ◽  
Pennapa Muthitamongkol ◽  
Chaiyuth Sae-Kung ◽  
Chanchana Thanachayanont

Titanium dioxide/silver (TiO2/Ag) composite films were prepared by incorporating Ag in pores of mesoporous TiO2films using a photoreduction method. The Ag nanoparticle sizes were in a range of 4.36–38.56 nm. The TiO2/Ag composite films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The TiO2and TiO2/Ag composite films were then sensitized by immersing in a 0.3 mM N719 dye solution and fabricated for conventional dye-sensitized solar cells (DSCs).J-Vcharacteristics of the TiO2/Ag DSCs showed that the Ag nanoparticle size of 19.16 nm resulted in the short circuit current density and efficiency of 8.12 mA/cm2and 4.76%.


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