The effect of graphene quantum dots/ ZnS co‐passivation on enhancing the photovoltaic performance of CdS quantum dot sensitized solar cells

2021 ◽  
Author(s):  
T. Archana ◽  
S. Sreelekshmi ◽  
G. Subashini ◽  
A. Nirmala Grace ◽  
M. Arivanandhan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Performance ◽  
Graphene Quantum Dots ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells

Carbon quantum dots improving photovoltaic performance of CdS quantum dot-sensitized solar cells

2020 ◽  
Vol 110 ◽  
pp. 110535 ◽  
Author(s):  
Ping Huang ◽  
Shunjian Xu ◽  
Meng Zhang ◽  
Wei Zhong ◽  
Zonghu Xiao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Performance ◽  
Carbon Quantum Dots ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells

Galvanic-Cell-Based Synthesis and Photovoltaic Performance of ZnO-CdS Core-Shell Nanorod Arrays for Quantum Dots Sensitized Solar Cells

2014 ◽  
Vol 618 ◽  
pp. 64-68 ◽  
Author(s):  
Le Ha Chi ◽  
Pham Duy Long ◽  
Hoang Vu Chung ◽  
Do Thi Phuong ◽  
Do Xuan Mai ◽  
...  
Keyword(s):  
Thin Films ◽  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Performance ◽  
Galvanic Cell ◽  
Core Shell ◽  
Nanorod Arrays ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells

Zinc oxide (ZnO) is recognized as one of the most attractive metal oxides because of its direct wide band gap (3.37 eV) and large exciton binding energy (60 meV), which make it promising for various applications in solar cells, gas sensors, photocatalysis and so on. Here, we report a facile synthesis to grow well-aligned ZnO nanorod arrays on SnO2: F (FTO) glass substrates without the ZnO seed layer using a Galvanic-cell-based method at low temperature (<100°C). CdS quantum dot thin films were then deposited on the nanorod arrays in turn by an effective successive ionic layer adsorption and reaction (SILAR) process to form a ZnO/CdS core-shell structure electrode. Structural, morphological and optical properties of the ZnO/CdS nanorod heterojunctions were investigated. The results indicate that CdS quantum dot thin films were uniformly deposited on the ZnO nanorods and the thickness of the CdS shell can be controlled by varying the number of the adsorption and reaction cycles. The number of quantum dots layers affects on photovoltaic performance of the ZnO/CdS core-shell nanorod arrays has been investigated as photoanodes in quantum dots 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.

S, N co-doped graphene quantum dots decorated ZnO nanorods for “Green” quantum dot sensitized solar cells

2019 ◽  
Author(s):  
Tanmoy Majumder ◽  
Saurab Dhar ◽  
Pinak Chakraborty ◽  
Suvra Prakash Mondal
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Zno Nanorods ◽  
Graphene Quantum Dots ◽  
Doped Graphene ◽  
Sensitized Solar Cells ◽  
Co Doped

Enhanced photovoltaic performance of quantum dot-sensitized solar cells with a progressive reduction of recombination using Cu-doped CdS quantum dots

2017 ◽  
Vol 396 ◽  
pp. 582-589 ◽  
Author(s):  
Mohammed Panthakkal Abdul Muthalif ◽  
Young-Seok Lee ◽  
Chozhidakath Damodharan Sunesh ◽  
Hee-Je Kim ◽  
Youngson Choe
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Performance ◽  
Cds Quantum Dots ◽  
Progressive Reduction ◽  
Sensitized Solar Cells
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