Mesophase ordering and structuring of porous titanium dioxide with high surface area and strong light harvesting matrix for dye-sensitized solar cell

2011 ◽  
Vol 1322 ◽  
Author(s):  
Ghim W. Ho ◽  
Shweta Agarwala ◽  
Moe Kevin
Keyword(s):  
Surface Area ◽  
Self Assembly ◽  
Light Harvesting ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cells ◽  
Mesoporous Tio2 ◽  
Strong Light ◽  
Dye Sensitized ◽  
Scattering Centers

ABSTRACTDye sensitized solar cells (DSSC) are attractive because they hold promise for devices that are easy to fabricate and inexpensive. In the present work, highly crystalline mesoporous TiO2 has been synthesized by evaporation induced self assembly (EISA) method using triblock copolymer Pluronic P123 as the organic template. The synthesized TiO2 is anatase in nature with a pore size of 10-15 nm. DSSC made from mesoporous TiO2 demonstrated solar conversion efficiency of ∼7%. This comes from the benefits of increased surface roughness, surface area and uniform porosity. In addition, well ordered and crystalline pores provided good sunlight absorption and low recombination path for charge carriers. To further enhance the efficiency of the DSSCs, light scattering centers were introduced in the mesoporous TiO2 film. Nanoparticles light scatterers are introduced to scatter the incoming light and hence to increase the light harvesting capability of the device. A 26 % increase in DSSC efficiency was observed with the implementation of scattering centers.

Anatase Mesoporous TiO2 Nanofibers with High Surface Area for Solid-State Dye-Sensitized Solar Cells

Small ◽  
2010 ◽  
Vol 6 (19) ◽  
pp. 2176-2182 ◽  
Author(s):  
Wei Zhang ◽  
Rui Zhu ◽  
Lin Ke ◽  
Xizhe Liu ◽  
Bin Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cells ◽  
Mesoporous Tio2 ◽  
Tio2 Nanofibers ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Mesophase Ordering of TiO2 Film with High Surface Area and Strong Light Harvesting for Dye-Sensitized Solar Cell

2010 ◽  
Vol 2 (7) ◽  
pp. 1844-1850 ◽  
Author(s):  
S. Agarwala ◽  
M. Kevin ◽  
A. S. W. Wong ◽  
C. K. N. Peh ◽  
V. Thavasi ◽  
...  
Keyword(s):  
Solar Cell ◽  
Surface Area ◽  
Tio2 Film ◽  
Light Harvesting ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cell ◽  
Strong Light ◽  
Dye Sensitized

scholarly journals Dye-Sensitized Solar Cells Based on High Surface Area Nanocrystalline Zinc Oxide Spheres

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Pavuluri Srinivasu ◽  
Surya Prakash Singh ◽  
Ashraful Islam ◽  
Liyuan Han
Keyword(s):  
Zinc Oxide ◽  
Solar Cells ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cells ◽  
Oxide Material ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Nanocrystalline Zinc Oxide

High surface area nanocrystalline zinc oxide material is fabricated using mesoporous nanostructured carbon as a sacrificial template through combustion process. The resulting material is characterized by XRD, N2 adsorption, HR-SEM, and HR-TEM. The nitrogen adsorption measurement indicates that the materials possess BET specific surface area ca. 30 m2/g. Electron microscopy images prove that the zinc oxide spheres possess particle size in the range of 0.12 μm–0.17 μm. The nanocrystalline zinc oxide spheres show 1.0% of energy conversion efficiency for dye-sensitized solar cells.

High-surface-area nanomesh graphene with enriched edge sites as efficient metal-free cathodes for dye-sensitized solar cells

Nanoscale ◽  
2016 ◽  
Vol 8 (26) ◽  
pp. 13059-13066 ◽  
Author(s):  
Wang Yang ◽  
Xiuwen Xu ◽  
Yalun Gao ◽  
Zhao Li ◽  
Cuiyu Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Metal-Free Counter Electrode for Efficient Dye-Sensitized Solar Cells through High Surface Area and Large Porous Carbon

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Pavuluri Srinivasu ◽  
Surya Prakash Singh ◽  
Ashraful Islam ◽  
Liyuan Han
Keyword(s):  
Electron Microscopy ◽  
Surface Area ◽  
Mesoporous Carbon ◽  
Counter Electrode ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cells ◽  
Nitrogen Adsorption ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Highly efficient, large mesoporous carbon is fabricated as a metal-free counter electrode for dye-sensitized solar cells. The mesoporous carbon shows very high energy conversion efficiency of 7.1% compared with activated carbon. The mesoporous carbon is prepared and characterized by nitrogen adsorption, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The nitrogen adsorption data reveals that the material possesses BET specific surface area ca.1300 m2/g and pore diameter 4.4 nm. Hexagonal rod-like morphology and ordered pore structure of mesoporous carbon are confirmed by electron microscopy data. The better performance of this carbon material is greatly benefited from its ordered interconnected mesoporous structure and high surface area.

High-surface-area, interconnected, nanofibrillar TiO2 structures as photoanodes in dye-sensitized solar cells

2013 ◽  
Vol 68 (7) ◽  
pp. 487-490 ◽  
Author(s):  
Dharani Sabba ◽  
Nripan Mathews ◽  
Julianto Chua ◽  
Stevin S. Pramana ◽  
Hemant K. Mulmudi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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