scholarly journals High-Efficiency CdS Quantum-Dots-Sensitized Solar Cells with Compressed NanocrystallineTiO2Photoelectrodes

2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Yanan Wang ◽  
Ning Peng ◽  
Hongling Li ◽  
Xuduo Bai
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
Power Conversion ◽  
Cds Quantum Dots ◽  
Compression Method ◽  
Photogenerated Electrons ◽  
Cds Qds ◽  
Sensitized Solar Cells ◽  
Titanium Substrates

Nanocrystalline TiO2films were fabricated on titanium substrates by compression method. The CdS quantum dots (QDs) were assembled onto the compressed TiO2layers, which serve as sensitizers. A maximum power conversion efficiency of 4.49% is achieved under 100 mW/cm2illumination. In this paper, we find that the compression can help increase the efficiency of the cell by increasing the absorption of the CdS QDs and improving the transportation of photogenerated electrons.

scholarly journals Photoacoustic Study of CdS QDs for Application in Quantum-Dot-Sensitized Solar Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
S. Abdallah ◽  
N. Al-Hosiny ◽  
Ali Badawi
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Solar Cells ◽  
Current Density ◽  
Cds Quantum Dots ◽  
Counter Electrodes ◽  
Redox Species ◽  
Cds Qds ◽  
Photovoltaic Characterization ◽  
Sensitized Solar Cells

The optical properties and photovoltaic characterization of CdS quantum dots sensitized solar cells (QDSSCs) were studied. CdS QDs were prepared by the chemical solution deposition (CD) technique. Photoacoustic spectroscopy (PA) was employed to study the optical properties of the prepared samples. The sizes of the CdS QDs were estimated from transmission electron microscope (TEM) micrographs gives radii ranged from 1.57 to 1.92 nm. The current density-voltage (J-V) characteristic curves of the assembled QDSSCs were measured. Fluorine doped Tin Oxide (FTO) substrates were coated with 20 nm-diameter TiO2nanoparticles (NPs). Presynthesized colloidal CdS quantum dots of different particles size were deposited on the TiO2-coated substrates using direct adsorption (DA) method. The FTO counter electrodes were coated with platinum, while the electroelectrolyte containingI-/I-3redox species was sandwiched between the two electrodes. The short current density (Jsc) and efficiency (η) increases as the particle size increases. The values ofJscincreases linearly with increasing the intensities of the sun light which indicates the greater sensitivity of the assembled 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

Researches on TiO2 nanometer electrode of CdS quantum dots sensitized solar cells

2015 ◽  
pp. 207-209
Author(s):  
Liuying Zhao ◽  
Fufang Zhou ◽  
Songjie Han ◽  
Ping Wang ◽  
Bi Jing
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Cds Quantum Dots ◽  
Sensitized Solar Cells

Supersensitization of CdS Quantum Dots with a Near-Infrared Organic Dye: Toward the Design of Panchromatic Hybrid-Sensitized Solar Cells

ACS Nano ◽  
2011 ◽  
Vol 5 (11) ◽  
pp. 9238-9245 ◽  
Author(s):  
Hyunbong Choi ◽  
Roxana Nicolaescu ◽  
Sanghyun Paek ◽  
Jaejung Ko ◽  
Prashant V. Kamat
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Near Infrared ◽  
Organic Dye ◽  
Cds Quantum Dots ◽  
Sensitized Solar Cells

CdS quantum dots pre-deposition for efficiency enhancement of quantum dot-sensitized solar cells

Solar Energy ◽  
2019 ◽  
Vol 188 ◽  
pp. 825-830 ◽  
Author(s):  
Mahmoud Samadpour ◽  
Hieng Kiat Jun ◽  
Parisa Parand ◽  
M.N. Najafi
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Efficiency Enhancement ◽  
Cds Quantum Dots ◽  
Sensitized Solar Cells

scholarly journals A Novel CdS Quantum Dots Decorated 3D Bi2O2CO3 Hierarchical Nanoflower with Enhanced Photocatalytic Performance

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1046 ◽  
Author(s):  
Zhilin Ji ◽  
Hongwei Wang ◽  
Xilin She
Keyword(s):  
Quantum Dots ◽  
Synergistic Effect ◽  
Rhodamine B ◽  
Active Sites ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Environmental Pollutants ◽  
Cds Quantum Dots ◽  
Design And Synthesis ◽  
Cds Qds

Heterojunction engineering has shown great potential in the field of photocatalysis to deal with environmental pollutants. The design and synthesis of heterojunction photocatalysts with high efficiency and stability still face great challenges. In this work, a novel CdS quantum dots (QDs) decorated 3D Bi2O2CO3 hierarchical nanoflower heterojunction photocatalyst (Bi2O2CO3/CdS QDs) was synthesized to investigate the photocatalytic Rhodamine B (RhB) degradation performance. CdS QDs were evenly distributed on the surface of the Bi2O2CO3 nanoflower. Bi2O2CO3/CdS QDs showed significantly enhanced photocatalytic RhB degradation performance compared with pristine Bi2O2CO3 and CdS QDs. The enhanced photocatalytic performance was attributed to the synergistic effect of hierarchical structure and heterojunction, which greatly increased the active sites of the reaction and the photogenerated carriers transfer.

Enhanced performance of all solid-state quantum dot-sensitized solar cells via synchronous deposition of PbS and CdS quantum dots

2020 ◽  
Vol 44 (2) ◽  
pp. 505-512 ◽  
Author(s):  
Xiaoli Mao ◽  
Jianguo Yu ◽  
Jun Xu ◽  
Juntian Zhou ◽  
Cheng Luo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solid State ◽  
Quantum Dot ◽  
Band Structure ◽  
Surface Recombination ◽  
Cds Quantum Dots ◽  
Sensitized Solar Cells

The synchronous deposition of PbS and CdS affords band-structure tailoring and surface recombination passivation for efficient and stable solid-state QDSCs.

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