Anchoring Spinel MnCo2S4 on Carbon Nanotubes as Efficient Counter Electrodes for Quantum Dot Sensitized Solar Cells

2019 ◽  
Vol 123 (36) ◽  
pp. 21866-21873 ◽  
Author(s):  
Wenhua Li ◽  
Lei He ◽  
Jing Zhang ◽  
Bin Li ◽  
Qianqiao Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Quantum Dot ◽  
Counter Electrodes ◽  
Sensitized Solar Cells

Tailorable boron-doped carbon nanotubes as high-efficiency counter electrodes for quantum dot sensitized solar cells

2021 ◽  
Author(s):  
Wenhua Li ◽  
Shule Zhang ◽  
Qianqiao Chen ◽  
Qin Zhong
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Efficiency ◽  
Cdse Qds ◽  
Counter Electrodes ◽  
Boron Doped ◽  
Excellent Activity ◽  
Sensitized Solar Cells

1. Tunable BCNTs are prepared by the pre-oxidation strategy. 2. B-Doped CNTs exhibit excellent activity for Sn2− reduction. 3. The QDSSC based on CdS/CdSe QDs and BCNT1 shows a PCE of 4.55% under one sunlight illumination.

scholarly journals Quantum Dot Sensitized Solar Cell: Photoanodes, Counter Electrodes, and Electrolytes

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2638
Author(s):  
Nguyen Thi Kim Chung ◽  
Phat Tan Nguyen ◽  
Ha Thanh Tung ◽  
Dang Huu Phuc
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Quantum Dot ◽  
Photon Absorption ◽  
Dye Molecules ◽  
Charge Generation ◽  
Counter Electrodes ◽  
Advantages And Disadvantages ◽  
Efficiency Performance ◽  
Sensitized Solar Cells

In this study, we provide the reader with an overview of quantum dot application in solar cells to replace dye molecules, where the quantum dots play a key role in photon absorption and excited charge generation in the device. The brief shows the types of quantum dot sensitized solar cells and presents the obtained results of them for each type of cell, and provides the advantages and disadvantages. Lastly, methods are proposed to improve the efficiency performance in the next researching.

Improved Efficiency of Dye Sensitized Solar Cells Using Aligned Carbon Nanotubes

2009 ◽  
Author(s):  
Robert A. Sayer ◽  
Stephen L. Hodson ◽  
Timothy S. Fisher
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Counter Electrode ◽  
Microwave Plasma ◽  
Dye Sensitized Solar Cells ◽  
Planar Geometry ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Cnt Arrays ◽  
Sensitized Solar Cells

Dye sensitized solar cells (DSSCs) offer many advantages in comparison to their Si-based counterparts, including lower cost of raw materials, faster manufacturing time, and the ability to be integrated with flexible substrates. Although many advances have been made in DSSC fabrication over recent years, their efficiency remains lower than commercially available Si photovoltaic cells. Here we report improved efficiency of TiO2/anthocyanin dye solar cell using aligned arrays of carbon nanotubes (CNTs) as a counter electrode. Dense vertically oriented CNT arrays are grown directly on the counter electrode using microwave plasma chemical vapor deposition and a tri-layer (Ti/Al/Fe) catalyst. The resulting arrays are 30 micrometers in height and have a number density of approximately five hundred million per square millimeter. By directly growing the CNTs on the counter electrode substrate, electrical interface conductance is enhanced. The performance of both as-grown and N-doped (using a nitrogen plasma) CNT arrays is reported. The fabricated DSSCs are tested under AM1.5 light. Increased short circuit current is observed in comparison to graphite and Pt counter electrodes. We attribute this improvement to the large surface area created by the 3D structure of the arrays in comparison to the planar geometry of the graphite and Pt electrodes as well as the excellent electrical properties of the CNTs.

Recent progress in quantum dot-sensitized solar cells employing metal chalcogenides

2019 ◽  
Vol 7 (46) ◽  
pp. 26205-26226 ◽  
Author(s):  
Donghao Wang ◽  
Feifei Yin ◽  
Zhonglin Du ◽  
Dongni Han ◽  
Jianguo Tang
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Recent Progress ◽  
Vital Role ◽  
Metal Chalcogenides ◽  
Counter Electrodes ◽  
Metal Chalcogenide ◽  
Interface Modification ◽  
Practical Applications ◽  
Sensitized Solar Cells

Metal chalcogenides play a vital role in the development of QDSCs. Here, we review recent progress on metal chalcogenide-based QDSCs in practical applications based on QD sensitizers, counter electrodes, and interface modification layers.

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