Study on negative incident photon-to-electron conversion efficiency of quantum dot-sensitized solar cells

2014 ◽  
Vol 85 (2) ◽  
pp. 023103 ◽  
Author(s):  
Chunhui Li ◽  
Huijue Wu ◽  
Lifeng Zhu ◽  
Junyan Xiao ◽  
Yanhong Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Incident Photon ◽  
Electron Conversion ◽  
Sensitized Solar Cells

Charge generation performance enhancement by size-dependent Cu2GeSe3quantum dot-sensitized solar cells

2019 ◽  
Vol 12 (01) ◽  
pp. 1850090
Author(s):  
Zhou Liu ◽  
Zhuoyin Peng ◽  
Jianlin Chen ◽  
Wei Li ◽  
Jian Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Performance Enhancement ◽  
Photovoltaic Performance ◽  
Charge Generation ◽  
Transfer Property ◽  
Photon Conversion ◽  
Sensitized Solar Cells

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.

Recent advances in critical materials for quantum dot-sensitized solar cells: a review

2015 ◽  
Vol 3 (34) ◽  
pp. 17497-17510 ◽  
Author(s):  
Jialong Duan ◽  
Huihui Zhang ◽  
Qunwei Tang ◽  
Benlin He ◽  
Liangmin Yu
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Light Absorption ◽  
Solar Spectrum ◽  
Cost Effective ◽  
Silicon Solar Cells ◽  
Recent Advances ◽  
Critical Materials ◽  
Sensitized Solar Cells

Quantum dot-sensitized solar cells (QDSCs) present promising cost-effective alternatives to conventional silicon solar cells due to their distinctive properties such as simplicity in fabrication, possibility to realize light absorption in wide solar spectrum regions, and theoretical conversion efficiency up to 44%.

Surface engineering of PbS quantum dot sensitized solar cells with a conversion efficiency exceeding 7%

2016 ◽  
Vol 4 (19) ◽  
pp. 7214-7221 ◽  
Author(s):  
Shuang Jiao ◽  
Jin Wang ◽  
Qing Shen ◽  
Yan Li ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Ion Exchange ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Surface Engineering ◽  
Passivation Layer ◽  
Core Shell ◽  
Liquid Junction ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dot

A CdS passivation layer was introduced to a PbS QD surface to synthesize PbS/CdS core/shell QDs through an ion exchange procedure, achieving a record PCE of 7.19% for PbS-based liquid-junction quantum dot sensitized solar cells.

scholarly journals Efficient passivated phthalocyanine-quantum dot solar cells

2015 ◽  
Vol 51 (9) ◽  
pp. 1732-1735 ◽  
Author(s):  
Vicente M. Blas-Ferrando ◽  
Javier Ortiz ◽  
Victoria González-Pedro ◽  
Rafael S. Sánchez ◽  
Iván Mora-Seró ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Quantum Dot Solar Cells ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells

The power conversion efficiency of CdSe and CdS quantum dot sensitized solar cells is enhanced up to 45% for CdSe and 104% for CdS by passivation with an asymmetrically disulfide substituted phthalocyanine.

Quasi-solid-state quantum dot sensitized solar cells with power conversion efficiency over 9% and high stability

2016 ◽  
Vol 4 (38) ◽  
pp. 14849-14856 ◽  
Author(s):  
Wenliang Feng ◽  
Leilei Zhao ◽  
Jun Du ◽  
Yan Li ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Quantum Dot ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Stability ◽  
Power Conversion ◽  
Sodium Carboxymethylcellulose ◽  
Liquid Junction ◽  
Sensitized Solar Cells

A highly conductive gel electrolyte based on sodium carboxymethylcellulose was developed to construct quasi-solid-state quantum dot sensitized solar cells that exhibit power conversion efficiency over 9% and a significant improvement in stability compared to liquid-junction QDSCs.

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