Electron Recombination Kinetics and the Analysis of Collection Efficiency and Diffusion Length Measurements in Dye Sensitized Solar Cells

2010 ◽  
Vol 114 (44) ◽  
pp. 19134-19140 ◽  
Author(s):  
Piers R. F. Barnes ◽  
Brian C. O’Regan
Keyword(s):  
Solar Cells ◽  
Diffusion Length ◽  
Collection Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Electron Recombination ◽  
Dye Sensitized ◽  
Length Measurements ◽  
Sensitized Solar Cells ◽  
And Diffusion ◽  
Recombination Kinetics

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%.

Enhancing Electron Collection Efficiency and Effective Diffusion Length in Dye-Sensitized Solar Cells

ChemPhysChem ◽  
2009 ◽  
Vol 10 (15) ◽  
pp. 2698-2702 ◽  
Author(s):  
Daniel Kwan-Pang Wong ◽  
Chen-Hao Ku ◽  
Yen-Ru Chen ◽  
Guan-Ren Chen ◽  
Jih-Jen Wu
Keyword(s):  
Solar Cells ◽  
Diffusion Length ◽  
Collection Efficiency ◽  
Effective Diffusion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Electron Collection ◽  
Sensitized Solar Cells ◽  
Electron Collection Efficiency

Electron Injection Efficiency and Diffusion Length in Dye-Sensitized Solar Cells Derived from Incident Photon Conversion Efficiency Measurements

2008 ◽  
Vol 113 (3) ◽  
pp. 1126-1136 ◽  
Author(s):  
Piers R. F. Barnes ◽  
Assaf Y. Anderson ◽  
Sara E. Koops ◽  
James R. Durrant ◽  
Brian C. O’Regan
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Diffusion Length ◽  
Dye Sensitized Solar Cells ◽  
Incident Photon ◽  
Dye Sensitized ◽  
Photon Conversion ◽  
Sensitized Solar Cells ◽  
And Diffusion ◽  
Electron Injection Efficiency

Helical Copper Redox Mediator with Low Electron Recombination for Dye-Sensitized Solar Cells

2021 ◽  
Author(s):  
Zijian Deng ◽  
Xichuan Yang ◽  
Kaiyuan Yang ◽  
Li Zhang ◽  
Haoxin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediator ◽  
Electron Recombination ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Surface modification of TiO2 by an ionic liquid electrolyte in dye-sensitized solar cells using a molecular insulator

RSC Advances ◽  
2015 ◽  
Vol 5 (43) ◽  
pp. 33855-33862 ◽  
Author(s):  
Molang Cai ◽  
Xu Pan ◽  
Weiqing Liu ◽  
John Bell ◽  
Songyuan Dai
Keyword(s):  
Ionic Liquid ◽  
Surface Modification ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Electron Recombination ◽  
Ionic Liquid Electrolyte ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

DMImBS is used as a novel additive in dye-sensitized solar cells to restrain the electron recombination and intercalation of Li+.

Densely packed zinc sulfide nanoparticles on TiO2 for hindering electron recombination in dye-sensitized solar cells

2016 ◽  
Vol 40 (11) ◽  
pp. 9176-9186 ◽  
Author(s):  
Hee-Je Kim ◽  
Jeong-Hoon Kim ◽  
Ikkurthi Kanaka Durga ◽  
Dinah Punnoose ◽  
Nagabhushanam Kundakarla ◽  
...  
Keyword(s):  
Solar Cells ◽  
Zinc Sulfide ◽  
Dye Sensitized Solar Cells ◽  
Electron Recombination ◽  
Compact Layer ◽  
Dye Sensitized ◽  
Zinc Sulfide Nanoparticles ◽  
Sensitized Solar Cells

A graphical diagram of DSSCs without and with ZnS as a compact layer on a TiO2 film.

scholarly journals Photovoltaic Performance of Dye-Sensitized Solar Cells Containing ZnO Microrods

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1645 ◽  
Author(s):  
Seong Il Cho ◽  
Hye Kyeong Sung ◽  
Sang-Ju Lee ◽  
Wook Hyun Kim ◽  
Dae-Hwan Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Area ◽  
Electrochemical Impedance ◽  
Collection Efficiency ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Growth Time ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

At an elevated temperature of 90 °C, a chemical bath deposition using an aqueous solution of Zn(NO3)2·6H2O and (CH2)6N4 resulted in the formation of both nanoflowers and microrods of ZnO on F-doped SnO2 glass with a seed layer. The nanoflowers and microrods were sensitized with dyes for application to the photoelectrodes of dye-sensitized solar cells (DSSCs). By extending the growth time of ZnO, the formation of nanoflowers was reduced and the formation of microrods favored. As the growth time was increased from 4 to 6 and then to 8 h, the open circuit voltage (Voc) values of the DSSCs were increased, whilst the short circuit current (Jsc) values varied only slightly. Changes in the dye-loading amount, dark current, and electrochemical impedance were monitored and they revealed that the increase in Voc was found to be due to a retardation of the charge recombination between photoinjected electrons and I3− ions and resulted from a reduction in the surface area of ZnO microrods. A reduced surface area decreased the dye contents adsorbed on the ZnO microrods, and thereby decreased the light harvesting efficiency (LHE). An increase in the electron collection efficiency attributed to the suppressed charge recombination counteracted the decreased LHE, resulting in comparable Jsc values regardless of the growth time.

Kinetics of electron recombination of dye-sensitized solar cells based on TiO2 nanorod arrays sensitized with different dyes

2011 ◽  
Vol 13 (38) ◽  
pp. 17359 ◽  
Author(s):  
Hongxia Wang ◽  
Meinan Liu ◽  
Min Zhang ◽  
Peng Wang ◽  
Hidetoshi Miura ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Nanorod Arrays ◽  
Electron Recombination ◽  
Tio2 Nanorod ◽  
Dye Sensitized ◽  
Tio2 Nanorod Arrays ◽  
Sensitized Solar Cells ◽  
Kinetics Of
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