scholarly journals Comparative advantages of Zn–Cu–In–S alloy QDs in the construction of quantum dot-sensitized solar cells

RSC Advances ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 3637-3645 ◽  
Author(s):  
Liang Yue ◽  
Huashang Rao ◽  
Jun Du ◽  
Zhenxiao Pan ◽  
Juan Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Electron Injection ◽  
Charge Recombination ◽  
Comparative Advantages ◽  
Sensitized Solar Cells

Benefiting from the accelerative electron injection and retarded charge recombination, Zn–Cu–In–S alloy QD based QDSC achieved a PCE of 8.55%, which is 21%, and 82% higher than those of CIS/ZnS, and pristine CIS QDs based solar cells, respectively.

scholarly journals ZnS/SiO2 Passivation Layer for High-Performance of TiO2/CuInS2 Quantum Dot Sensitized Solar Cells

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1931
Author(s):  
Hee-Je Kim ◽  
Jin-Ho Bae ◽  
Hyunwoong Seo ◽  
Masaharu Shiratani ◽  
Chandu Venkata Veera Muralee Gopi
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Charge Recombination ◽  
Open Circuit ◽  
Passivation Layer ◽  
Voltage Decay ◽  
Sensitized Solar Cells ◽  
Η Value

Suppressing the charge recombination at the interface of photoanode/electrolyte is the crucial way to improve the quantum dot sensitized solar cells (QDSSCs) performance. In this scenario, ZnS/SiO2 blocking layer was deposited on TiO2/CuInS2 QDs to inhibit the charge recombination at photoanode/electrolyte interface. As a result, the TiO2/CuInS2/ZnS/SiO2 based QDSSCs delivers a power conversion efficiency (η) value of 4.63%, which is much higher than the TiO2/CuInS2 (2.15%) and TiO2/CuInS2/ZnS (3.23%) based QDSSCs. Impedance spectroscopy and open circuit voltage decay analyses indicate that ZnS/SiO2 passivation layer on TiO2/CuInS2 suppress the charge recombination at the interface of photoanode/electrolyte and enhance the electron lifetime.

High performance of TiO2/CdS quantum dot sensitized solar cells with a Cu–ZnS passivation layer

2017 ◽  
Vol 41 (5) ◽  
pp. 1914-1917 ◽  
Author(s):  
Young-Seok Lee ◽  
Chandu V. V. M. Gopi ◽  
Araveeti Eswar Reddy ◽  
Chandu Nagaraju ◽  
Hee-Je Kim
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
High Performance ◽  
Light Harvesting ◽  
Charge Recombination ◽  
Passivation Layer ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells

A Cu–ZnS passivation layer effectively suppresses the charge recombination and increases the light harvesting in QDSSCs.

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.

Investigation on novel CuS/NiS composite counter electrode for hindering charge recombination in quantum dot sensitized solar cells

2016 ◽  
Vol 777 ◽  
pp. 123-132 ◽  
Author(s):  
Hee-Je Kim ◽  
Seong-Min Suh ◽  
S. Srinivasa Rao ◽  
Dinah Punnoose ◽  
Chebrolu Venkata Tulasivarma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Counter Electrode ◽  
Charge Recombination ◽  
Sensitized Solar Cells

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.

High performance and reduced charge recombination of CdSe/CdS quantum dot-sensitized solar cells

2012 ◽  
Vol 22 (24) ◽  
pp. 12058 ◽  
Author(s):  
Xiao-Yun Yu ◽  
Bing-Xin Lei ◽  
Dai-Bin Kuang ◽  
Cheng-Yong Su
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
High Performance ◽  
Charge Recombination ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells

Quantum dot sensitized solar cells: Light harvesting versus charge recombination, a film thickness consideration

2017 ◽  
Vol 682 ◽  
pp. 71-76 ◽  
Author(s):  
Xiu Wei Wang ◽  
Ye Feng Wang ◽  
Jing Hui Zeng ◽  
Feng Shi ◽  
Yu Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Film Thickness ◽  
Light Harvesting ◽  
Charge Recombination ◽  
Sensitized Solar Cells
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