Electron density and dye adsorption dependence of electron transport in dye-sensitized TiO 2 solar cells

2004 ◽  
Author(s):  
Shogo Nakade ◽  
Wataru Kubo ◽  
Yasuteru Saito ◽  
Takayuki Kitamura ◽  
Yuji Wada ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Electron Density ◽  
Dye Adsorption ◽  
Dye Sensitized

Effect of Nanograss and Annealing Temperature on TiO2 Nanotubes Based Dye Sensitized Solar Cells

2013 ◽  
Vol 771 ◽  
pp. 103-113 ◽  
Author(s):  
Johns Naduvath ◽  
Santosh Shaw ◽  
Parag Bhargava ◽  
Sudhanshu Mallick
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Annealing Temperature ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Titanium Foil ◽  
Titania Nanotubes ◽  
Dye Sensitized ◽  
Annealing Conditions ◽  
Sensitized Solar Cells

In TiO2 nanoparticle based dye sensitized solar cells (DSSC), the electron injected from the dye has to cross multiple interparticle boundaries in random directions before reaching the electrode. For application in DSSCs, the directional pathway for electron transport through the nanotubes is known to reduce the recombination rate. In the present study, titania nanotubes with nanograss layer have been fabricated by anodization of titanium foil in fluoride containing organic electrolyte. Dye sensitized solar cells with photoanode made of titania nanotubes covered with nanograsswas found to have a higher efficiency than ones made with only titania nanotubes of the same length.This can be attributed to enhanced dye adsorption on nanotubes with nanograss. The efficiency of DSSC using titania nanotubes is also affected by the annealing conditions such as duration, temperature.

Template-free TiO2 hollow submicrospheres embedded with SnO2 nanobeans as a versatile scattering layer for dye-sensitized solar cells

2015 ◽  
Vol 51 (14) ◽  
pp. 2848-2850 ◽  
Author(s):  
Chih-Liang Wang ◽  
Jin-Yun Liao ◽  
Yubao Zhao ◽  
Arumugam Manthiram
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Conversion Efficiency ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Scattering Layer ◽  
Dye Sensitized ◽  
Template Free ◽  
Sensitized Solar Cells

Nanobean SnO2-embedded TiO2 hollow submicrospheres as a scattering layer of dye-sensitized solar cells allow to simultaneously promote dye adsorption, light harvesting, and electron transport, leading to 28% improvement in the conversion efficiency compared to film-based SnO2.

A semi-empirical analysis of dye adsorption and electron transport in dye sensitized solar cells (DSSCs)

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92690-92706 ◽  
Author(s):  
Mohsen Ameri ◽  
Feridoun Samavat ◽  
Ezeddin Mohajerani
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Transport Properties ◽  
Empirical Analysis ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Adsorption Parameters ◽  
Dye Sensitized ◽  
Semi Empirical ◽  
Sensitized Solar Cells

Experiments and modeling of dye adsorption and electron transport characteristics with respect to photoanode thickness were performed to elucidate the dye adsorption parameters and their relation with the structural and transport properties of DSSCs.

scholarly journals Eco-Friendly Dye-Sensitized Solar Cells Based on Water-Electrolytes and Chlorophyll

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2150
Author(s):  
Ji-Hye Kim ◽  
Sung-Yoon Park ◽  
Dong-Hyuk Lim ◽  
So-Young Lim ◽  
Jonghoon Choi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Plasma Treatment ◽  
Ruthenium Complex ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Synthesis Process ◽  
Dye Sensitized ◽  
Water Based ◽  
Sensitized Solar Cells

Organic solvents used for electrolytes of dye-sensitized solar cells (DSSCs) are generally not only toxic and explosive but also prone to leakage due to volatility and low surface tension. The representative dyes of DSSCs are ruthenium-complex molecules, which are expensive and require a complicated synthesis process. In this paper, the eco-friendly DSSCs were presented based on water-based electrolytes and a commercially available organic dye. The effect of aging time after the device fabrication and the electrolyte composition on the photovoltaic performance of the eco-friendly DSSCs were investigated. Plasma treatment of TiO2 was adopted to improve the dye adsorption as well as the wettability of the water-based electrolytes on TiO2. It turned out that the plasma treatment was an effective way of improving the photovoltaic performance of the eco-friendly DSSCs by increasing the efficiency by 3.4 times. For more eco-friendly DSSCs, the organic-synthetic dye was replaced by chlorophyll extracted from spinach. With the plasma treatment, the efficiency of the eco-friendly DSSCs based on water-electrolytes and chlorophyll was comparable to those of the previously reported chlorophyll-based DSSCs with non-aqueous electrolytes.

Efficient electron transport in tetrapod-like ZnO metal-free dye-sensitized solar cells

2009 ◽  
Vol 2 (6) ◽  
pp. 694 ◽  
Author(s):  
Wei-Hao Chiu ◽  
Chia-Hua Lee ◽  
Hsin-Ming Cheng ◽  
Hsiu-Fen Lin ◽  
Shih-Chieh Liao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Fabricate Dye-Sensitized Solar Cell with Electrospining

2011 ◽  
Vol 335-336 ◽  
pp. 1117-1120
Author(s):  
Yun Yun Chu ◽  
Yu Chou Chao
Keyword(s):  
Solar Cell ◽  
Electron Transport ◽  
High Surface ◽  
High Surface Area ◽  
Dye Adsorption ◽  
Dye Sensitized Solar Cell ◽  
High Electron ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
Viable Method

Dye adsorption on Ti02and electron transport in Ti02film are the two critical factors in determining efficiency of the the dye sensitized solar cell (DSSC). Increasing dye adsorption which increases the light harvesting is usually achieved by using nanoporous or nanoparticle Ti02films. Electron transport is determined by the inter-particle resistance of Ti02film. Electrospinning is a viable method for forming porous structure materials with high surface area. In this study, it was found that electrospinning is able to achieve good solar cell performance due to the high electron transport caused by the pores in the Ti02film.

X-ray Characterization of Dye Adsorption in Coadsorbed Dye-Sensitized Solar Cells

2013 ◽  
Vol 117 (33) ◽  
pp. 17033-17038 ◽  
Author(s):  
Mitsunori Honda ◽  
Masatoshi Yanagida ◽  
Liyuan Han ◽  
Kenjiro Miyano
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
X Ray ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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