Performance enhancement in titania based quantum dot sensitized solar cells through incorporation of disc shaped ZnO nanoparticles into photoanode

Cu2GeSe3 quantum dot is introduced to instead of non-toxic CuInSe2 as a sensitizer for solar cells, which is employed to enhance the photovoltaic performance. Cu2GeSe3 quantum dots with various sizes are prepared by thermolysis process, which are employed for the fabrication of quantum dot-sensitized solar cells (QDSSC) according to assembly linking process. The optical absorption properties of the Cu2GeSe3 quantum dot-sensitized photo-electrodes have been obviously enhanced by the size optimization of quantum dots, which are better than that of CuInSe2-based photo-electrodes. Due to the balance on the deposition quantity and charge transfer property of the quantum dots, 3.9[Formula: see text]nm-sized Cu2GeSe3 QDSSC exhibits the highest current density value and incident photon conversion efficiency response, which result in a higher photovoltaic conversion efficiency than that of CuInSe2 QDSSC. The modulation of Cu2GeSe3 QDs will further improve the performance of photovoltaic devices.

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Interface connection modulation by CuxS buffer layer on charge transfer performance enhancement of CuInS2 quantum dot-sensitized solar cells

Journal of Materials Research ◽

10.1557/s43578-021-00274-7 ◽

2021 ◽

Author(s):

Meng Wang ◽

Zhuoyin Peng ◽

Zuoqiu Ning ◽

Jianlin Chen ◽

Wei Li ◽

...

Keyword(s):

Solar Cells ◽

Charge Transfer ◽

Quantum Dot ◽

Buffer Layer ◽

Performance Enhancement ◽

Transfer Performance ◽

Sensitized Solar Cells

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Strategy for performance enhancement of Cd1-XZnXTe/CdS core/shell quantum dot sensitized solar cells through band adjustment

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2020.154050 ◽

2020 ◽

Vol 826 ◽

pp. 154050

Author(s):

Wangwei Lu ◽

Bin Song ◽

Huazheng Li ◽

Jing Zhou ◽

Weixia Dong ◽

...

Keyword(s):

Solar Cells ◽

Quantum Dot ◽

Performance Enhancement ◽

Core Shell ◽

Band Adjustment ◽

Sensitized Solar Cells

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A stoichiometric CdS interlayer for the photovoltaic performance enhancement of quantum-dot sensitized solar cells

Physical Chemistry Chemical Physics ◽

10.1039/c8cp06426a ◽

2019 ◽

Vol 21 (7) ◽

pp. 3970-3975 ◽

Cited By ~ 3

Author(s):

Shixin Chen ◽

Yinglin Wang ◽

Shuang Lu ◽

Yichun Liu ◽

Xintong Zhang

Keyword(s):

Solar Cells ◽

Quantum Dot ◽

Performance Enhancement ◽

Sol Gel ◽

Photovoltaic Performance ◽

Stoichiometric Ratio ◽

Gel Method ◽

Sol Gel Method ◽

Sensitized Solar Cells

We employed a sol–gel method to prepare a CdS interlayer (CdS-SG) with a stoichiometric ratio and then fabricated QDSCs.

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

Journal of Materials Chemistry A ◽

10.1039/c5ta04758g ◽

2015 ◽

Vol 3 (33) ◽

pp. 17091-17097 ◽

Cited By ~ 38

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.

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