Aqueous solution-processed off-stoichiometric Cu–In–S QDs and their application in quantum dot-sensitized solar cells

2018 ◽  
Vol 6 (20) ◽  
pp. 9629-9641 ◽  
Author(s):  
Ya-Han Chiang ◽  
Kuan-Yu Lin ◽  
Yu-Hsuan Chen ◽  
Keiko Waki ◽  
Mulu Alemayehu Abate ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
One Pot ◽  
Solution Processed ◽  
Sensitized Solar Cells ◽  
Mn Doped

Off-stoichiometric CuInS2 quantum dots (CuInS2, a mixture of In2S3/CuInS2, and a Mn-doped mixture of In2S3/CuInS2) were prepared in a one-pot reaction, and the corresponding sensitized solar cells exhibit promising photovoltaic performances.

Aqueous synthesis of Mn-doped CuInSe2 quantum dots to enhance the performance of quantum dot sensitized solar cells

2019 ◽  
Vol 48 (42) ◽  
pp. 16115-16122
Author(s):  
Mulu Alemayehu Abate ◽  
Khalilalrahman Dehvari ◽  
Jia-Yaw Chang ◽  
Keiko Waki
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Power Conversion Efficiency ◽  
Light Absorption ◽  
Charge Separation ◽  
Power Conversion ◽  
Aqueous Synthesis ◽  
Sensitized Solar Cells ◽  
Mn Doped

Mn-Doped QDs extended light absorption by altering the bandgap and facilitated rapid electron injection and charge separation, which together result in enhanced overall power conversion efficiency (PCE).

A strategy to improve the energy conversion efficiency and stability of quantum dot-sensitized solar cells using manganese-doped cadmium sulfide quantum dots

2015 ◽  
Vol 44 (2) ◽  
pp. 630-638 ◽  
Author(s):  
Chandu V. V. M. Gopi ◽  
M. Venkata-Haritha ◽  
Soo-Kyoung Kim ◽  
Hee-Je Kim
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Energy Conversion ◽  
Cadmium Sulfide ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Sensitized Solar Cells ◽  
Mn Doped

Better stability and higher performance of Mn-doped CdS QDSSCs (PCE = 2.85%) than those of CdS QDSSCs (PCE = 2.11%).

Anisotropic Nanostructure ZnO Photoelectrodes for CdS/CdSe Quantum Dot Sensitized Solar Cells

2013 ◽  
Vol 873 ◽  
pp. 556-561
Author(s):  
Jian Jun Tian
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Chemical Bath Deposition ◽  
Cdse Quantum Dots ◽  
Silar Method ◽  
Nanorods Array ◽  
Cdse Quantum Dot ◽  
Cbd Method ◽  
Sensitized Solar Cells

CdS/CdSe quantum dots co-sensitized solar cells (QDSCs) were prepared by combining the successive ion layer absorption and reaction (SILAR) method and chemical bath deposition (CBD) method for the fabrication of CdS and CdSe quantum dots, respectively. In this work, we designed anisotropic nanostructure ZnO photoelectrodes, such as nanorods/nanosheets and nanorods array, for CdS/CdSe quantum dots co-sensitized solar cells. Our study revealed that the performance of QDSCs could be improved by modifying surface of ZnO to increase the loading of quantum dots and reduce the charge recombination.

Ag+ ion doped on the CdSe quantum dots for quantum-dot-sensitized solar cells’ application

2019 ◽  
Vol 125 (8) ◽  
Author(s):  
Ha Thanh Tung ◽  
Doan Van Thuan ◽  
Jun Hieng Kiat ◽  
Dang Huu Phuc
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Cdse Quantum Dots ◽  
Sensitized Solar Cells

High Efficiency Quantum Dot Sensitized Solar Cells Based on Direct Adsorption of Quantum Dots on Photoanodes

2017 ◽  
Vol 9 (27) ◽  
pp. 22549-22559 ◽  
Author(s):  
Wenran Wang ◽  
Guocan Jiang ◽  
Juan Yu ◽  
Wei Wang ◽  
Zhenxiao Pan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Efficiency ◽  
Sensitized Solar Cells ◽  
Direct Adsorption

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.

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