Analysis on the effect of polysulfide electrolyte composition for higher performance of Si quantum dot-sensitized solar cells

2013 ◽  
Vol 95 ◽  
pp. 43-47 ◽  
Author(s):  
Hyunwoong Seo ◽  
Yuting Wang ◽  
Giichiro Uchida ◽  
Kunihiro Kamataki ◽  
Naho Itagaki ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Electrolyte Composition ◽  
Polysulfide Electrolyte ◽  
Si Quantum Dot ◽  
Sensitized Solar Cells

scholarly journals A Suitable Polysulfide Electrolyte for CdSe Quantum Dot-Sensitized Solar Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
H. K. Jun ◽  
M. A. Careem ◽  
A. K. Arof
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Liquid Electrolyte ◽  
Solvent Ratio ◽  
Cdse Qds ◽  
Pure Ethanol ◽  
Cell Efficiency ◽  
Polysulfide Electrolyte ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells

A polysulfide liquid electrolyte is developed for the application in CdSe quantum dot-sensitized solar cells (QDSSCs). A solvent consisting of ethanol and water in the ratio of 8 : 2 by volume has been found as the optimum solvent for preparing the liquid electrolytes. This solvent ratio appears to give higher cell efficiency compared to pure ethanol or water as a solvent. Na2S and S give rise to a good redox couple in the electrolyte for QDSSC operation, and the optimum concentrations required are 0.5 M and 0.1 M, respectively. Addition of guanidine thiocyanate (GuSCN) to the electrolyte further enhances the performance. The QDSSC with CdSe sensitized electrode prepared using 7 cycles of successive ionic layer adsorption and reaction (SILAR) produces an efficiency of 1.41% with a fill factor of 44% on using a polysulfide electrolyte of 0.5 M Na2S, 0.1 M S, and 0.05 M GuSCN in ethanol/water (8 : 2 by volume) under the illumination of 100 mW/cm2white light. Inclusion of small amount of TiO2nanoparticles into the electrolyte helps to stabilize the polysulfide electrolyte and thereby improve the stability of the CdSe QDSSC. The CdSe QDs are also found to be stable in the optimized polysulfide liquid electrolyte.

Fumed SiO2 modified electrolytes for quantum dot sensitized solar cells with efficiency exceeding 11% and better stability

2016 ◽  
Vol 4 (37) ◽  
pp. 14194-14203 ◽  
Author(s):  
Huiyun Wei ◽  
Guoshuai Wang ◽  
Jiangjian Shi ◽  
Huijue Wu ◽  
Yanhong Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Electrolyte Additive ◽  
Polysulfide Electrolyte ◽  
Sensitized Solar Cells ◽  
Fumed Sio2

Fumed SiO2 nanoparticles have been used as a polysulfide electrolyte additive for improving the performance of CdSexTe1−x QDSCs.

Poly(vinyl pyrrolidone): a superior and general additive in polysulfide electrolytes for high efficiency quantum dot sensitized solar cells

2016 ◽  
Vol 4 (29) ◽  
pp. 11416-11421 ◽  
Author(s):  
Guocan Jiang ◽  
Zhenxiao Pan ◽  
Zhenwei Ren ◽  
Jun Du ◽  
Cheng Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Charge Recombination ◽  
Vinyl Pyrrolidone ◽  
Polysulfide Electrolyte ◽  
Poly Vinyl Pyrrolidone ◽  
Sensitized Solar Cells

Poly(vinyl pyrrolidone) (PVP) was used as a superior and general additive to modify the traditional polysulfide electrolyte in quantum dot sensitized solar cells and the photovoltaic performance of the constructed solar cells was significantly improved benefiting from the reduced charge recombination.

Performance enhancement of quantum dot sensitized solar cells by adding electrolyte additives

2015 ◽  
Vol 3 (33) ◽  
pp. 17091-17097 ◽  
Author(s):  
Jun Du ◽  
Xinxin Meng ◽  
Ke Zhao ◽  
Yan Li ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Polyethylene Glycol ◽  
Quantum Dot ◽  
Performance Enhancement ◽  
Charge Recombination ◽  
Electrolyte Additives ◽  
Polysulfide Electrolyte ◽  
Recombination Processes ◽  
Sensitized Solar Cells

The parasitic charge recombination processes between TiO2/QDs/electrolyte interfaces were effectively suppressed with the addition of polyethylene glycol (PEG) additive in polysulfide electrolyte, giving enhancement of PCE from 5.80% to 6.74% in the corresponding cell devices.

Si quantum dot-sensitized solar cells using Si nanoparticles produced by plasma CVD

2010 ◽  
Author(s):  
Yuki Kawashima ◽  
Kousuke Yamamoto ◽  
Muneharu Sato ◽  
Kenta Nakahara ◽  
Takeaki Matsunaga ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Plasma Cvd ◽  
Si Quantum Dot ◽  
Si Nanoparticles ◽  
Sensitized Solar Cells

Improvement of Charge Transportation in Si Quantum Dot-Sensitized Solar Cells Using Vanadium Doped TiO2

2016 ◽  
Vol 16 (5) ◽  
pp. 4875-4879 ◽  
Author(s):  
Hyunwoong Seo ◽  
Daiki Ichida ◽  
Shinji Hashimoto ◽  
Naho Itagaki ◽  
Kazunori Koga ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Si Quantum Dot ◽  
Sensitized Solar Cells

Dextran based highly conductive hydrogel polysulfide electrolyte for efficient quasi-solid-state quantum dot-sensitized solar cells

2013 ◽  
Vol 92 ◽  
pp. 117-123 ◽  
Author(s):  
Hong-Yan Chen ◽  
Ling Lin ◽  
Xiao-Yun Yu ◽  
Kang-Qiang Qiu ◽  
Xian-Yong Lü ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Quantum Dot ◽  
Polysulfide Electrolyte ◽  
Conductive Hydrogel ◽  
Sensitized Solar Cells
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