Ultrafast and slow charge recombination dynamics of diketopyrrolopyrrole–NiO dye sensitized solar cells

2016 ◽  
Vol 18 (27) ◽  
pp. 18515-18527 ◽  
Author(s):  
Lei Zhang ◽  
Ludovic Favereau ◽  
Yoann Farré ◽  
Edgar Mijangos ◽  
Yann Pellegrin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Hole Injection ◽  
Dye Sensitized ◽  
Dye Regeneration ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells ◽  
Nio Films ◽  
Recombination Dynamics

Ultrafast hole injection from photoexcited diketopyrrolopyrrole-based dyes into mesoporous NiO films was followed by charge recombination that spanned time scales from pico- to microseconds, which was reflected in large variations in dye regeneration and device solar energy conversion efficiencies.

scholarly journals Dye regeneration and charge recombination in dye-sensitized solar cells with ferrocene derivatives as redox mediators

2012 ◽  
Vol 5 (5) ◽  
pp. 7090 ◽  
Author(s):  
Torben Daeneke ◽  
Attila J. Mozer ◽  
Tae-Hyuk Kwon ◽  
Noel W. Duffy ◽  
Andrew B. Holmes ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Redox Mediators ◽  
Ferrocene Derivatives ◽  
Dye Sensitized ◽  
Dye Regeneration ◽  
Sensitized Solar Cells

The introduction of conjugated isolation groups into the common acceptor cyanoacrylic acid: an efficient strategy to suppress the charge recombination in dye sensitized solar cells and the dramatically improved efficiency from 5.89% to 9.44%

2016 ◽  
Vol 4 (42) ◽  
pp. 16403-16409 ◽  
Author(s):  
Huiyang Li ◽  
Manman Fang ◽  
Runli Tang ◽  
Yingqin Hou ◽  
Qiuyan Liao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Efficient Strategy ◽  
Dye Sensitized ◽  
Cyanoacrylic Acid ◽  
The Common ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

The conversion efficiencies of DSCs can be enhanced largely by the modification of cyanoacrylic acid.

Kinetics of dye regeneration in liquid electrolyte unveils efficiency of 10.5% in dye-sensitized solar cells

2018 ◽  
Vol 6 (42) ◽  
pp. 11444-11456 ◽  
Author(s):  
Jonnadula Venkata Suman Krishna ◽  
Narra Vamsi Krishna ◽  
Towhid H. Chowdhury ◽  
Suryaprakash Singh ◽  
Idriss Bedja ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Dye Regeneration ◽  
Sensitized Solar Cells ◽  
Kinetics Of

We have designed and synthesised four novel porphyrin sensitizers for dye-sensitized solar cell applications and shown power conversion efficiency of 10.5%.

A polymer and graphene layer to increase dye regeneration and suppress back electron transfer in dye sensitized solar cells

2017 ◽  
Vol 53 (49) ◽  
pp. 6629-6632 ◽  
Author(s):  
Vediappan Sudhakar ◽  
Arulraj Arulkashmir ◽  
Kothandam Krishnamoorthy
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Graphene Layer ◽  
Dye Sensitized Solar Cells ◽  
Blocking Layer ◽  
Dye Sensitized ◽  
Back Electron Transfer ◽  
Dye Regeneration ◽  
Sensitized Solar Cells

A polymer–graphene blocking layer decreases back electron transfer and increases dye regeneration that improved the DSSC efficiency to 10.4%.

Photoelectrode with Multilayer of Gradual Scattering Structure Used in Dye-Sensitized Solar Cells

2013 ◽  
Vol 699 ◽  
pp. 22-27
Author(s):  
Xiao Peng ◽  
Bao Zhang ◽  
Shu Xian Meng ◽  
Xiang Mei Yu ◽  
Zhe Zeng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion ◽  
Emulsion Method ◽  
Dye Sensitized ◽  
Scattering Centers ◽  
Micro Emulsion ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

A multilayer TiO2 film featured with gradual scattering structure was developed and used as photoelectrode for dye-sensitized solar cells. This structure of film consists of P25 nanoparticles and TiO2 aggregate which was synthesized by micro-emulsion method as scattering centers The scattering centers were deposited by gradually increasing the amount from the film’s bottom to its top. The special films were used for the studies on the photovoltaic performance of N719 and Zn-3, and their photoelectric conversion efficiencies were 7.34% and 4.04%, respectively. Furthermore, more improvement of the conversion efficiency is realized for Zn-3 than for N719 by using our newly developed multilayer films as photoelectrode compared with ordinary photoelectrode.

Using Orbital Symmetry to Minimize Charge Recombination in Dye-Sensitized Solar Cells

2012 ◽  
Vol 125 (3) ◽  
pp. 1007-1009 ◽  
Author(s):  
Emanuele Maggio ◽  
Natalia Martsinovich ◽  
Alessandro Troisi
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Orbital Symmetry ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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