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.

Efficient Quantum Dot-Sensitized Solar Cells through Sulfur-rich Carbon Nitride Modified Electrolyte

Nanoscale ◽  
2021 ◽  
Author(s):  
akash sanjay rasal ◽  
Khalilalrahman Dehvari ◽  
Girum Getachew ◽  
chiranjeevi korupalli ◽  
Anil Vitthal Ghule ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Carbon Nitride ◽  
Charge Recombination ◽  
Polymer Additives ◽  
Polysulfide Electrolyte ◽  
Electrolyte Interface ◽  
Recombination Processes ◽  
Sensitized Solar Cells

For quantum dot sensitized solar cells (QDSSCs), modifying conservative polysulfide electrolyte with polymer additives has been proven as an effectual way to control the charge recombination processes at TiO2/QDs/electrolyte interface...

CuInSe2 and CuInSe2–ZnS based high efficiency “green” quantum dot sensitized solar cells

2015 ◽  
Vol 3 (4) ◽  
pp. 1649-1655 ◽  
Author(s):  
Wenjie Li ◽  
Zhenxiao Pan ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Chemical Stability ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Optoelectronic Properties ◽  
Sensitized Solar Cells

The CISe-based QDs with ZnS alloy configuration exhibit higher superior optoelectronic properties and chemical stability, and thus the fabrication of CISe–ZnS QDSCs shows better photovoltaic performance.

scholarly journals Origin of the effects of PEG additives in electrolytes on the performance of quantum dot sensitized solar cells

RSC Advances ◽  
2018 ◽  
Vol 8 (52) ◽  
pp. 29958-29966 ◽  
Author(s):  
Yu Sun ◽  
Guocan Jiang ◽  
Mengsi Zhou ◽  
Zhenxiao Pan ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Counter Electrode ◽  
Photovoltaic Performance ◽  
Polysulfide Electrolyte ◽  
Sensitized Solar Cells

The origin for the effect of PEG additives in polysulfide electrolyte on the performance of both photoanode and counter electrode was explored, and a facile and general route for remarkably improving photovoltaic performance of QDSCs was offered.

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

2018 ◽  
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 ◽  
Electrochemical Impedance ◽  
Photovoltaic Performance ◽  
Charge Recombination ◽  
Open Circuit ◽  
Passivation Layer ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

Suppressing the charge recombination at the interface of photoanode/electrolyte is the crucial way to enhance the photovoltaic performance of quantum dot sensitized solar cells (QDSSCs). 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 significantly higher than the 2.15% and 3.23% observed for QDSSCs with a TiO2/CuInS2 device and TiO2/CuInS2/ZnS, respectively. Electrochemical impedance spectroscopy and open circuit voltage decay analyses indicate that ZnS/SiO2 passivation layer on TiO2/CuInS2 suppress the charge recombination at the photoanode/electrolyte interface and prolongs the electron lifetime.

A ZnS and metal hydroxide composite passivation layer for recombination control in high efficiency quantum dot sensitized solar cells

2016 ◽  
Vol 4 (48) ◽  
pp. 18976-18982 ◽  
Author(s):  
Zhenxiao Pan ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
High Efficiency ◽  
Charge Recombination ◽  
Metal Hydroxide ◽  
Passivation Layer ◽  
Sensitized Solar Cells

An effective composite passivation layer was developed for suppressing charge recombination and improving the performance of QDSCs.

Charge recombination control for high efficiency CdS/CdSe quantum dot co-sensitized solar cells with multi-ZnS layers

2018 ◽  
Vol 47 (7) ◽  
pp. 2214-2221 ◽  
Author(s):  
Qiang Wu ◽  
Juan Hou ◽  
Haifeng Zhao ◽  
Zhiyong Liu ◽  
Xuanyu Yue ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Power Conversion ◽  
Charge Recombination ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells

ZnS as an inorganic passivation agent has been proven to be effective in suppressing charge recombination and enhancing power conversion efficiency (PCE) in quantum dot-sensitized solar cells (QDSCs).

Quantum dot sensitized solar cells with efficiency over 12% based on tetraethyl orthosilicate additive in polysulfide electrolyte

2017 ◽  
Vol 5 (27) ◽  
pp. 14124-14133 ◽  
Author(s):  
Juan Yu ◽  
Wenran Wang ◽  
Zhenxiao Pan ◽  
Jun Du ◽  
Zhenwei Ren ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Charge Recombination ◽  
Tetraethyl Orthosilicate ◽  
Polysulfide Electrolyte ◽  
Sensitized Solar Cells

Benefiting from the suppressed charge recombination occurring at the photoanode/electrolyte interfaces with the introduction of TEOS additive in the polysulfide electrolyte, a remarkable PCE of over 12% was obtained for ZCISe QDSCs.

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