scholarly journals Electrophoretic Codeposition of MoOx/MoS2 Thin Film for Platinum-Free Counter Electrode in Quantum Dot Solar Cells

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Thanh Tung Nguyen ◽  
Huy Phap Ngo ◽  
Van Thang Le ◽  
Le Thanh Nguyen Huynh ◽  
Viet Hai Le ◽  
...  

The MoOx/MoS2 thin films were manufactured on conducting glass (FTO) from the ethanolic mixture of colloidal molybdenum disulfide (MoS2) and molybdenum oxides (MoOx) by electrophoretic deposition method and were used for counter electrode of quantum dot solar cells. Different ramp-rate conditions for electrophoretic deposition as well as bias potential were investigated in an attempt to get the highest possible electrocatalytic activity of polysulfide (S2-/Sn2-) redox couple. In this research, interestingly, by simply using CdS/CdSe/ZnS photoanode and polysulfide electrolyte under 1000 W.m−2 AM 1.5 G illumination, the power conversion efficiency of MoOx/MoS2-counter-electrode-based QDSC was achieved up to 2.01%, which was double compared to platinum-based counter electrode of QDSCs.

2015 ◽  
Vol 51 (9) ◽  
pp. 1732-1735 ◽  
Author(s):  
Vicente M. Blas-Ferrando ◽  
Javier Ortiz ◽  
Victoria González-Pedro ◽  
Rafael S. Sánchez ◽  
Iván Mora-Seró ◽  
...  

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.


2018 ◽  
Vol 47 (29) ◽  
pp. 9634-9642 ◽  
Author(s):  
Shuqi Lu ◽  
Shanglong Peng ◽  
Zhiya Zhang ◽  
Yunlong Deng ◽  
Tianfeng Qin ◽  
...  

Surface passivation in quantum dot-sensitized solar cells (QDSSCs) plays a very important role in preventing surface charge recombination and thus enhancing the power conversion efficiency (PCE).


2016 ◽  
Vol 138 (12) ◽  
pp. 4201-4209 ◽  
Author(s):  
Jun Du ◽  
Zhonglin Du ◽  
Jin-Song Hu ◽  
Zhenxiao Pan ◽  
Qing Shen ◽  
...  

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