First principles DFT study of dye-sensitized CdS quantum dots

2014 ◽  
Author(s):  
Kalpna Jain ◽  
Shyam Kishor ◽  
Kh. S. Singh ◽  
Ida Josefesson ◽  
Michael Odelius ◽  
...  
Keyword(s):  
Quantum Dots ◽  
First Principles ◽  
Dft Study ◽  
Cds Quantum Dots ◽  
Dye Sensitized

scholarly journals Comparative Study between Dye-Sensitized and CdS Quantum-Dots-Sensitized TiO2 Solar Cells Using Photoinduced Absorption Spectroscopy

2011 ◽  
Vol 2011 ◽  
pp. 1-5
Author(s):  
Idriss Bedja ◽  
Anders Hagfeldt
Keyword(s):  
Quantum Dots ◽  
Comparison Study ◽  
Dye Molecules ◽  
Cds Quantum Dots ◽  
Photoinduced Absorption ◽  
Dye Sensitized ◽  
Redox Electrolyte ◽  
Photoinduced Charge Separation ◽  
Millisecond Range ◽  
Photoinduced Charge

Two 8 μm thick TiO2 photoelectrodes have been sensitized separately by N719 dye molecules and CdS quantum dots for a comparison study. Photoinduced absorption (PIA) spectroscopy was employed to investigate the mechanistic properties of electrons under illumination conditions comparable to sunlight. The PIA spectrum of both electrodes (in the presence of electrolyte) is due to electrons in TiO2 and iodine radicals in the electrolyte. In the absence of redox electrolyte, both electrodes show long-lived photoinduced charge-separation with lifetime in a millisecond range (8.5 ms for Q-dot-sensitized TiO2 and 11.5 ms for dye-sensitized TiO2).

Study on Preparation of CdS Quantum Dots for Dye Sensitized Solar Cells

2014 ◽  
Vol 1070-1072 ◽  
pp. 608-611
Author(s):  
Xiang Yu Wan ◽  
Xing An Mei ◽  
Yong Hong Tian ◽  
Da Hai Xu ◽  
Yan Xiong
Keyword(s):  
Quantum Dots ◽  
Solar Cell ◽  
Quantum Dot ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Cds Quantum Dots ◽  
Silar Method ◽  
Dye Sensitized ◽  
Layer Adsorption ◽  
Sensitized Solar Cells

Quantum dot sensitized solar cell (QDSSC) has a potential high efficiency as the third generation solar cell, on account of the excellent performance of quantum dots. CdS is one of the most widely used quantum dot of QDSSCs, hence the optimization of its preparation process is extremely important. CdS quantum dots prepared in aqueous or alcohol on TiO2 film by successive ionic layer adsorption and reaction (SILAR) method are investigated and alcohol is found to be better than water as the precursor solvent.

Energy transfer kinetics in Basic Fuchsin dye sensitized CdS quantum dots

2020 ◽  
Vol 242 ◽  
pp. 122560
Author(s):  
Alina C. Kuriakose ◽  
V.P.N. Nampoori ◽  
Sheenu Thomas
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Cds Quantum Dots ◽  
Basic Fuchsin ◽  
Dye Sensitized

Enhanced electrochemiluminescence of CdS quantum dots capped with mercaptopropionic acid activated by EDC for Zika virus detection

The Analyst ◽  
2021 ◽  
Author(s):  
Hui-Jun Zhang ◽  
Jin Zhu ◽  
Ning Bao ◽  
Shou-Nian Ding
Keyword(s):  
Quantum Dots ◽  
Zika Virus ◽  
Virus Detection ◽  
Cds Quantum Dots ◽  
Mercaptopropionic Acid ◽  
Sandwich Type ◽  
Cds Qds

The mechanism of enhanced ECL of MPA@CdS QDs by EDC activation was investigated, and a sandwich-type ECL immunosensor has been designed for Zika virus detection.

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