Nanostructured flower-shaped CuCo2S4 as a Pt-free counter-electrode for dye-sensitized solar cells

2020 ◽  
Vol 56 (81) ◽  
pp. 12190-12193
Author(s):  
Bakhytzhan Baptayev ◽  
Dias Mustazheb ◽  
Zhamilya Abilova ◽  
Mannix P. Balanay

Low-temperature ternary CuCo2S4 counter electrodes demonstrated better electrocatalytic activity and stability than Pt electrodes.

Author(s):  
Robert A. Sayer ◽  
Stephen L. Hodson ◽  
Timothy S. Fisher

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.


2009 ◽  
Vol 11 (7) ◽  
pp. 1346-1349 ◽  
Author(s):  
Kexin Li ◽  
Yanhong Luo ◽  
Zhexun Yu ◽  
Minghui Deng ◽  
Dongmei Li ◽  
...  

2010 ◽  
Vol 21 (9) ◽  
pp. 1137-1140 ◽  
Author(s):  
Li Li Chen ◽  
Jia Liu ◽  
Jing Bo Zhang ◽  
Xiao Wen Zhou ◽  
Xiao Ling Zhang ◽  
...  

2014 ◽  
Vol 50 (93) ◽  
pp. 14678-14681 ◽  
Author(s):  
Xiao-Jing Sang ◽  
Jian-Sheng Li ◽  
Lan-Cui Zhang ◽  
Zai-Ming Zhu ◽  
Wei-Lin Chen ◽  
...  

Two new POM-carboxyethyltin derivatives increased the electrocatalytic activity of single-walled carbon nanotubes toward triiodide reduction as counter electrodes in DSSCs.


2015 ◽  
Vol 3 (45) ◽  
pp. 23028-23034 ◽  
Author(s):  
Ranran Zhou ◽  
Wenxi Guo ◽  
Ruomeng Yu ◽  
Caofeng Pan

We present a highly flexible dye-sensitized solar cell composed of TiO2 nanotube arrays (TNARs) as the photoanode and a transparent Pt network electrode as the counter electrode (CE).


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