Chemical Diffusion Coefficient of Electrons in Nanostructured Semiconductor Electrodes and Dye-Sensitized Solar Cells

2004 ◽  
Vol 108 (7) ◽  
pp. 2323-2332 ◽  
Author(s):  
Juan Bisquert
Keyword(s):  
Diffusion Coefficient ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Chemical Diffusion ◽  
Chemical Diffusion Coefficient ◽  
Dye Sensitized ◽  
Semiconductor Electrodes ◽  
Nanostructured Semiconductor ◽  
Sensitized Solar Cells

scholarly journals Chemical diffusion coefficient in dye sensitized solar cells as a function of porosity and surface roughness

Solar Energy ◽  
2016 ◽  
Vol 135 ◽  
pp. 506-511 ◽  
Author(s):  
Naser Abdi ◽  
Yaser Abdi ◽  
Zahra Alemipour ◽  
Ehsan NedaaeeOskoee
Keyword(s):  
Surface Roughness ◽  
Diffusion Coefficient ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Chemical Diffusion ◽  
Chemical Diffusion Coefficient ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Preparation and Characterization of Chitosan Binder-Based Electrode for Dye-Sensitized Solar Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
En Mei Jin ◽  
Kyung-Hee Park ◽  
Ju-Young Park ◽  
Jae-Wook Lee ◽  
Soon-Ho Yim ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Solar Cells ◽  
Transit Time ◽  
Diffusion Length ◽  
Dye Sensitized Solar Cells ◽  
Electron Recombination ◽  
Recombination Lifetime ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
And Diffusion

A chitosan binder-based TiO2photoelectrode is used in dye-sensitized solar cells (DSSCs). Field-emission scanning electron microscope (FE-SEM) images revealed that the grain size, thickness, and distribution of TiO2films are affected by the chitosan content. With addition of 2.0 wt% chitosan to the TiO2film (D2), the surface pore size became the smallest, and the pores were fairly evenly distributed. The electron transit time, electron recombination lifetime, diffusion coefficient, and diffusion length were analyzed by IMVS and IMPS. The best DSSC, with 2.0 wt% chitosan addition to the TiO2film, had a shorter electron transit time, longer electron recombination lifetime, and larger diffusion coefficient and diffusion length than the other samples. The results of 2.0 wt% chitosan-added TiO2DSSCs are an electron transit time of  s, electron recombination lifetime of  s, diffusion coefficient of  cm2s−1, diffusion length of 14.81 μm, and a solar conversion efficiency of 4.18%.

Dye-Sensitized Solar Cells Based on Nanostructured Semiconductor Oxide Ceramics with Ultra-Thin Barrier Layers

2010 ◽  
Vol 115 (1) ◽  
pp. 120-131 ◽  
Author(s):  
K. Tennakone ◽  
G. L. M. P. Apsonsu ◽  
Y. P. Y. P. Ariyasinghe ◽  
R. C. Buchanan ◽  
V. P. S. Perera ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Oxide Ceramics ◽  
Barrier Layers ◽  
Dye Sensitized ◽  
Nanostructured Semiconductor ◽  
Sensitized Solar Cells ◽  
Thin Barrier

scholarly journals Nanostructured Semiconductor Materials for Dye-Sensitized Solar Cells

2017 ◽  
Vol 2017 ◽  
pp. 1-31 ◽  
Author(s):  
Carmen Cavallo ◽  
Francesco Di Pascasio ◽  
Alessandro Latini ◽  
Matteo Bonomo ◽  
Danilo Dini
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Low Light ◽  
Small Power ◽  
Dye Sensitized ◽  
History Of ◽  
Silicon Based ◽  
Nanostructured Semiconductor ◽  
Sensitized Solar Cells

Since O’Regan and Grätzel’s first report in 1991, dye-sensitized solar cells (DSSCs) appeared immediately as a promising low-cost photovoltaic technology. In fact, though being far less efficient than conventional silicon-based photovoltaics (being the maximum, lab scale prototype reported efficiency around 13%), the simple design of the device and the absence of the strict and expensive manufacturing processes needed for conventional photovoltaics make them attractive in small-power applications especially in low-light conditions, where they outperform their silicon counterparts. Nanomaterials are at the very heart of DSSC, as the success of its design is due to the use of nanostructures at both the anode and the cathode. In this review, we present the state of the art for bothn-type andp-type semiconductors used in the photoelectrodes of DSSCs, showing the evolution of the materials during the 25 years of history of this kind of devices. In the case ofp-type semiconductors, also some other energy conversion applications are touched upon.

Charge Transport and Interfacial Charge Transfer in Dye-Sensitized Nanoporous Semiconductor Electrode Systems

2010 ◽  
Vol 451 ◽  
pp. 97-121 ◽  
Author(s):  
James R. Jennings ◽  
Qing Wang
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Dye Sensitized Solar Cells ◽  
Redox Species ◽  
Dye Sensitized ◽  
Semiconductor Electrode ◽  
Dye Regeneration ◽  
Semiconductor Electrodes ◽  
Electrode Systems ◽  
Sensitized Solar Cells

General characteristics of dye-sensitized nanoporous semiconductor electrode systems are summarized, with a particular emphasis on dye-sensitized solar cells. Properties of these electrode systems which distinguish them from conventional bulk semiconductor electrodes are highlighted. Current understanding of electron transport in dye-sensitized solar cells, in terms of the diffusion and multiple trapping models, is reviewed. Alternative transport and recombination theories are also briefly reviewed. Electron transfer at the semiconductor/electrolyte interface in dye-sensitized solar cells is reviewed and recent experimental results obtained by the authors are highlighted. As applicable, common techniques for characterization of electron transport and transfer in dye-sensitized solar cells are described, with reference to case studies where the electron diffusion length in dye-sensitized solar cells has been estimated. The steady-state aspects of the dye-regeneration process are also reviewed, together with the cross-surface percolation of holes in the dye monolayer and the finite-length diffusion of redox species in the electrolyte.

Copper Piperazine Complex with a High Diffusion Coefficient for Dye-Sensitized Solar Cells

2021 ◽  
Author(s):  
Kaiyuan Yang ◽  
Xichuan Yang ◽  
Zijian Deng ◽  
Li Zhang ◽  
Jincheng An
Keyword(s):  
Diffusion Coefficient ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
High Diffusion ◽  
High Diffusion Coefficient ◽  
Sensitized Solar Cells

Enhancing the electron lifetime and diffusion coefficient in dye-sensitized solar cells by patterning the layer of TiO2 nanoparticles

2016 ◽  
Vol 119 (11) ◽  
pp. 114302 ◽  
Author(s):  
Mohammad Sajedi Alvar ◽  
Mohammad Javadi ◽  
Yaser Abdi ◽  
Ezatollah Arzi
Keyword(s):  
Diffusion Coefficient ◽  
Solar Cells ◽  
Tio2 Nanoparticles ◽  
Dye Sensitized Solar Cells ◽  
Electron Lifetime ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
And Diffusion
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