Effective Upconverter and Light Scattering Dual Function LiYF4:Er3+/Yb3+ Assisted Photoelectrode for High Performance Cosensitized Dye Sensitized Solar Cells

2020 ◽  
Vol 2 (4) ◽  
pp. 962-970 ◽  
Author(s):  
Meenakshamma Ambapuram ◽  
Rajeswari Ramireddy ◽  
Gurulakshmi Maddala ◽  
Siddeswaramma Godugunuru ◽  
Pedda Venkata Subbaiah Yerva ◽  
...  
2013 ◽  
Vol 26 (6) ◽  
pp. 905-909 ◽  
Author(s):  
Zhenghong Dong ◽  
Hao Ren ◽  
Colin M. Hessel ◽  
Jiangyan Wang ◽  
Ranbo Yu ◽  
...  

2012 ◽  
Vol 05 (01) ◽  
pp. 1250017 ◽  
Author(s):  
YONG WANG ◽  
YU TAN ◽  
BIQIONG LIU ◽  
BITAO LIU

Pure anatase TiO2 spheres with mesoporous structure were prepared by a simple urea assisted hydrothermal process at low temperature. X-ray Diffractometer, Scanning Electron Microscope, Transmission Electron Microscope, and N2 adsorption-desorption were used to characterize TiO2 . The dye-sensitized solar cells results show that an overall light conversion efficiency of 6.96% which is 36.7% higher than that of the overall efficiency (5.09%) obtained from the P25 photoanode owing to the superior light scattering effect and the high level of dye loading capacity of microspheres.


2012 ◽  
Vol 22 (13) ◽  
pp. 6027 ◽  
Author(s):  
Woosung Kwon ◽  
Yong-June Chang ◽  
Yoon-Cheol Park ◽  
Hyun Myung Jang ◽  
Shi-Woo Rhee

NANO ◽  
2014 ◽  
Vol 09 (05) ◽  
pp. 1440007 ◽  
Author(s):  
YONG DING ◽  
LI'E MO ◽  
LI TAO ◽  
YANMEI MA ◽  
LINHUA HU ◽  
...  

The sub-microspheres play multiple roles in enhancing dye adsorption and light-scattering to improve the performance of dye-sensitized solar cells (DSSCs). In this work, the well-defined TiO 2 sub-microspheres with anatase granular-like nanocrystals are prepared in high yield by combining hydrolytic process with solvothermal treatment. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) results indicated that plenty of rhombic nanoparticles with ~ 18 nm diameter having mutual contacts to neighboring nanoparticles were densely self-assembled into sub-microspheres, and abundant mesopores existed in the whole sub-microspheres with superior light scattering ability. The appropriate pore diameter and relatively high specific surface area of the as-obtained sub-microsphere result in a higher dye adsorption. As expected, by using the sub-microspheres as a scattering layer, a higher photovoltaic conversion efficiency of 10.15% is obtained for DSSCs.


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