Photovoltaic Properties of an rGO/Pt Counter Electrode With AZO Photoanode for Dye-Sensitized Solar Cells Under Low Light Intensity

2020 ◽  
Vol 33 (1) ◽  
pp. 121-127
Author(s):  
Jung-Chuan Chou ◽  
Cheng-Chu Ko ◽  
Jun-Xiang Chang ◽  
Yu-Hsun Nien ◽  
Chih-Hsien Lai ◽  
...  
2017 ◽  
Vol 17 (2) ◽  
pp. 30 ◽  
Author(s):  
Natalita Maulani Nursam ◽  
Ade Istiqomah ◽  
Jojo Hidayat ◽  
Putri Nur Anggraini ◽  
Shobih

Dye-sensitized solar cells (DSSC) are widely developed due to their attractive appearance and simple fabrication processes. One of the challenges that arise in the DSSC fabrication involves high material cost associated with the cost of conductive substrate. DSSC with monolithic configuration was then developed on the basis of this motivation. In this contribution, titanium dioxide-based monolithic type DSSCs were fabricated on a single fluorine-doped transparent oxide coated glass using porous ZrO2 as spacer. Herein, the catalytic material for the counter-electrode was varied using carbon composite and platinum in order to analyze their effect on the solar cell efficiency. Four-point probe measurement revealed that the carbon composite exhibited slightly higher conductivity with a sheet resistance of 9.8 Ω/sq and 10.9 Ω/sq for carbon and platinum, respectively. Likewise, the photoconversion efficiency of the monolithic cells with carbon counter-electrode almost doubled the efficiency of the cells with platinum counter-electrode. Our results demonstrate that carbon could outperform the performance of platinum as catalytic material in monolithic DSSC.


2012 ◽  
Vol 253-255 ◽  
pp. 689-692 ◽  
Author(s):  
Shun Jian Xu ◽  
Yu Feng Luo ◽  
Wei Zhong ◽  
Xiao Yun Liu ◽  
Zong Hu Xiao ◽  
...  

Graphene nanosheets (GNs) were introduced into graphite counter electrode to construct a graphite/GNs (GGN) counter electrode to enhance the photovoltaic properties of the dye–sensitized solar cells (DSCs). The efficiency of the DSCs with the GGN electrode is 38.4% higher than that of DSCs with graphite electrode. The improved efficiency is attributed to the enhancement in the short circuit photocurrent density and fill factor. The GNs with high conductivity in the GGN electrode are believed to strengthen the contacts among the graphite particles as well as between the carbon film and the substrate, providing enough conductive paths for the transportation of the electrons in the electrode. Therefore, the sheet resistance of the GGN electrode is reduced and the catalytic activity for triiodide ( ) reduction is improved, which are two factors to enhance the efficiency of the cell.


Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14433-14440 ◽  
Author(s):  
Sheng-qi Guo ◽  
Tian-zeng Jing ◽  
Xiao Zhang ◽  
Xiao-bing Yang ◽  
Zhi-hao Yuan ◽  
...  

In this work, we report the synthesis of mesoporous Bi2S3 nanorods under hydrothermal conditions without additives, and investigated their catalytic activities as the CE in DSCs by I–V curves and tested conversion efficiency.


2021 ◽  
Vol 6 (7) ◽  
pp. 1541-1547
Author(s):  
Anurag Roy ◽  
Senthilarasu Sundaram ◽  
Tapas K. Mallick

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