Bi-layer photoanodes with superior charge collection ability and diffusion length of sub-layer nanostructures for the fabrication of high efficiency dye-sensitized solar cells

2019 ◽  
Vol 319 ◽  
pp. 339-348 ◽  
Author(s):  
Murali Balu ◽  
Kuttappan Gireesh Baiju ◽  
Mohan Raj Subramaniam ◽  
Duraisamy Kumaresan
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Diffusion Length ◽  
Dye Sensitized Solar Cells ◽  
Charge Collection ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
And Diffusion

Dye-Sensitized Solar Cells Consisting of 3D-Electrodes—A Review: Aiming at High Efficiency From the View Point of Light Harvesting and Charge Collection

2010 ◽  
Vol 132 (2) ◽  
Author(s):  
Kenshiro Uzaki ◽  
Terumi Nishimura ◽  
Jun Usagawa ◽  
Shuzi Hayase ◽  
Mitsuru Kono ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Light Harvesting ◽  
Fiber Type ◽  
Dye Sensitized Solar Cells ◽  
Three Dimensional ◽  
Charge Collection ◽  
Dye Sensitized ◽  
3D Electrodes ◽  
Sensitized Solar Cells

Directions to high efficiency dye-sensitized solar cells (DSCs) are reviewed in terms of light harvesting and charge collection. Three dimensional DSCs characterized by a double dye layer electrode, a floating electrode, and a fiber type electrode are proposed. The potentiality of each structure was discussed by using each model cell. Transparent conductive layerless electrodes were the key structures in these cells. Fabrication processes and fundamental performances are reported. Finally, it is concluded that dyes having high photoconversion efficiency in the near IR and IR regions are essential for realizing these tandem and hybrid 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%.

scholarly journals High efficiency dye-sensitized solar cells with VOC–JSC trade off eradication by interfacial engineering of the photoanode|electrolyte interface

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40292-40300
Author(s):  
Anantharaj Gopalraman ◽  
Subbian Karuppuchamy ◽  
Saranyan Vijayaraghavan
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Surface States ◽  
Trade Off ◽  
Interfacial Engineering ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

VOC–JSC trade off is eliminated. Newly created surface states by OA in TiO2 facilitated the charge transfer kinetics.

scholarly journals Ruthenium Sensitizers and Their Applications in Dye-Sensitized Solar Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-21 ◽  
Author(s):  
Yuancheng Qin ◽  
Qiang Peng
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Ruthenium Complexes ◽  
Practical Applications ◽  
Photovoltaic Energy ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Excellent Stability

Dye-sensitized solar cells (DSSCs) have attracted considerable attention in recent years due to the possibility of low-cost conversion of photovoltaic energy. The DSSCs-based ruthenium complexes as sensitizers show high efficiency and excellent stability, implying potential practical applications. This review focuses on recent advances in design and preparation of efficient ruthenium sensitizers and their applications in DSSCs, including thiocyanate ruthenium sensitizers and thiocyanate-free ruthenium sensitizers.

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