Enhanced Photovoltaic Properties of a Cobalt Bipyridyl Redox Electrolyte in Dye-Sensitized Solar Cells Employing Vertically Aligned TiO2 Nanotube Electrodes

2011 ◽  
Vol 115 (40) ◽  
pp. 19979-19985 ◽  
Author(s):  
Jae-Yup Kim ◽  
Kyung Jae Lee ◽  
Soon Hyung Kang ◽  
Junyoung Shin ◽  
Yung-Eun Sung
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Nanotube ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Redox Electrolyte ◽  
Vertically Aligned ◽  
Sensitized Solar Cells

scholarly journals Highly Ordered TiO2 Nanotube Electrodes for Efficient Quasi-Solid-State Dye-Sensitized Solar Cells

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6100
Author(s):  
A Reum Lee ◽  
Jae-Yup Kim
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Nanotube ◽  
Gel Electrolyte ◽  
Polymer Gel ◽  
Polymer Gel Electrolyte ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Free-standing TiO2 nanotube (NT) electrodes have attracted much attention for application in solid- or quasi-solid-state dye-sensitized solar cells (DSSCs) because of their suitable pore structure for the infiltration of solid electrolytes. However, few studies have been performed on the relationship between nanostructures of these NT electrodes and the photovoltaic properties of the solid- or quasi-solid-state DSSCs. Here, we prepare vertically aligned and highly ordered TiO2 NT electrodes via a two-step anodization method for application in quasi-solid-state DSSCs that employs a polymer gel electrolyte. The length of NT arrays is controlled in the range of 10–42 μm by varying the anodization time, and the correlation between NT length and the photovoltaic properties of quasi-solid-state DSSCs is investigated. As the NT length increases, the roughness factor of the electrode is enlarged, leading to the higher dye-loading; however, photovoltage is gradually decreased, resulting in an optimized conversion efficiency at the NT length of 18.5 μm. Electrochemical impedance spectroscopy (EIS) analysis reveals that the decrease in photovoltage for longer NT arrays is mainly attributed to the increased electron recombination rate with redox couples in the polymer gel electrolyte.

Enhancing the performance of dye-sensitized solar cells based on an organic dye by incorporating TiO2 nanotube in a TiO2 nanoparticle film

2009 ◽  
Vol 54 (16) ◽  
pp. 4123-4130 ◽  
Author(s):  
Kun-Mu Lee ◽  
Vembu Suryanarayanan ◽  
Jen-Hsien Huang ◽  
K.R. Justin Thomas ◽  
Jiann T. Lin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Tio2 Nanoparticle ◽  
Tio2 Nanotube ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Nanoparticle Film

Fabrication of Morphology Controllable Vertically Aligned TiO2 Nanorod Arrays for Dye-Sensitized Solar Cells

2016 ◽  
Vol 680 ◽  
pp. 278-281 ◽  
Author(s):  
Fen Li ◽  
Su Juan Hu ◽  
Li Dong Wei ◽  
Bo Chi ◽  
Jian Li
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Growth Direction ◽  
Nanorod Arrays ◽  
Coated Glass Substrate ◽  
Rutile Structure ◽  
Dye Sensitized ◽  
Vertically Aligned ◽  
Sensitized Solar Cells ◽  
Different Thickness

In this work, vertically aligned TiO2 nanorod arrays (NR) are synthesized directly on FTO coated glass substrate by hydrothermal method. The samples are characterized by XRD, SEM, TEM and the results indicate that the 1-D nanorods are of single crystal rutile structure with growth direction along the [001] direction. The morphology (diameter, thickness and density) of the nanorods can be adjusted by changing the precursor amounts. The possible growth mechanism of TiO2 nanorods on FTO substrate has also been briefly discussed in this work. For dye-sensitized solar cells (DSSCs) fabricated of different thickness nanorods, a power conversion efficiency (PCE) of 1.74% has been achieved by using ~3μm nanorod arrays under simulated AM 1.5 illumination (100 mW cm-2). It is expected that the 1-D nanorods can be composited with other nanomaterial of different structures and morphologies to enhance the efficiency of DSSCs.

scholarly journals Structure and photovoltaic properties of ZnO nanowire for dye-sensitized solar cells

2012 ◽  
Vol 7 (1) ◽  
Author(s):  
Ming-Cheng Kao ◽  
Hone-Zern Chen ◽  
San-Lin Young ◽  
Chen-Cheng Lin ◽  
Chung-Yuan Kung
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Nanowire ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Novel Zinc Porphyrin Sensitizers for Dye-Sensitized Solar Cells: Synthesis and Spectral, Electrochemical, and Photovoltaic Properties

2009 ◽  
Vol 15 (6) ◽  
pp. 1403-1412 ◽  
Author(s):  
Cheng-Wei Lee ◽  
Hsueh-Pei Lu ◽  
Chi-Ming Lan ◽  
Yi-Lin Huang ◽  
You-Ren Liang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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