Simulation of Steady-State Characteristics of Dye-Sensitized Solar Cells and the Interpretation of the Diffusion Length

2009 ◽  
Vol 1 (1) ◽  
pp. 450-456 ◽  
Author(s):  
Juan Bisquert ◽  
Iván Mora-Seró
Keyword(s):  
Solar Cells ◽  
Steady State ◽  
Diffusion Length ◽  
Dye Sensitized Solar Cells ◽  
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%.

Influence of TiO2 Film Thickness on the Performance of Dye-Sensitized Solar Cells: Relation Between Optimum Film Thickness and Electron Diffusion Length

2013 ◽  
Vol 2 (4) ◽  
pp. 280-286 ◽  
Author(s):  
Renán Escalante ◽  
Rodrigo García-Rodríguez ◽  
Beatriz E. Heredia-Cervera ◽  
Miguel A. Aguilar-Frutis ◽  
Nikté Gómez-Ortíz ◽  
...  
Keyword(s):  
Solar Cells ◽  
Film Thickness ◽  
Tio2 Film ◽  
Diffusion Length ◽  
Dye Sensitized Solar Cells ◽  
Electron Diffusion ◽  
Dye Sensitized ◽  
Electron Diffusion Length ◽  
Sensitized Solar Cells

Study on Determination of I-V Curve of Dye-Sensitized Solar Cell

2011 ◽  
Vol 685 ◽  
pp. 13-19
Author(s):  
Han Min Tian ◽  
Tao Yu ◽  
Zhi Gang Zou
Keyword(s):  
Solar Cells ◽  
Steady State ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Applied Bias ◽  
Dye Sensitized ◽  
Capacitance Characteristics ◽  
Sensitized Solar Cells

Many studies reported that dye-sensitized solar cells have more significant capacitance characteristics than the silicon solar cell. In this study, it was found the capacitance characteristics of dye-sensitized solar cell changes with the imposed bias voltage. The bias voltage is indispensable in the standard measurement for the conversion efficiency of dye-sensitized solar cell. The influence of changed capacitance during the measurement on the conversion efficiency of dye-sensitized solar cells was investigated. The analysis on the EIS spectra and equivalent circuit shows that the capacitance of dye-sensitized solar cells is small and the deviation cell I-V characteristics from the steady-state value is minor when the applied bias is small; while under a condition with a large applied bias, the capacitance characteristics of dye-sensitized solar cell grew rapidly and the I-V characteristics deviated from the steady-state value significantly increased. This phenomenon is helpful for the accurate measurement of the quantum conversion efficiency and photoelectric conversion efficiency of dye-sensitized solar cells.

scholarly journals Coupled Optical and Electronic Modeling of Dye-Sensitized Solar Cells for Steady-State Parameter Extraction

2011 ◽  
Vol 115 (20) ◽  
pp. 10218-10229 ◽  
Author(s):  
Sophie Wenger ◽  
Matthias Schmid ◽  
Guido Rothenberger ◽  
Adrian Gentsch ◽  
Michael Grätzel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Steady State ◽  
Dye Sensitized Solar Cells ◽  
State Parameter ◽  
Parameter Extraction ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Steady State Parameter

scholarly journals Determination of the Electron Diffusion Length in Dye-Sensitized Solar Cells by Substrate Contact Patterning

2011 ◽  
Vol 115 (28) ◽  
pp. 13932-13937 ◽  
Author(s):  
Halina K. Dunn ◽  
Per-Oskar Westin ◽  
Daniel R. Staff ◽  
Laurence M. Peter ◽  
Alison B. Walker ◽  
...  
Keyword(s):  
Solar Cells ◽  
Diffusion Length ◽  
Dye Sensitized Solar Cells ◽  
Electron Diffusion ◽  
Dye Sensitized ◽  
Electron Diffusion Length ◽  
Sensitized Solar Cells
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