Platinum@regular indium oxide nanooctahedra as difunctional counter electrodes for dye-sensitized solar cells

2014 ◽  
Vol 2 (18) ◽  
pp. 6331-6336 ◽  
Author(s):  
Bo Zhang ◽  
Yu Hang Li ◽  
Ju Hua Zhong ◽  
Xiao Hua Yang ◽  
Hai Min Zhang ◽  
...  

A difunctional counter electrode composed of platinum nanoparticles supported on regular In2O3nanooctahedra demonstrates good catalytic activity and excellent light scattering.

2015 ◽  
Vol 51 (3) ◽  
pp. 491-494 ◽  
Author(s):  
Xiaopeng Wang ◽  
Qunwei Tang ◽  
Benlin He ◽  
Ru Li ◽  
Liangmin Yu

Transparent Ni–Se alloys are successfully synthesized by an electrochemical deposition strategy and employed as counter electrode (CE) materials in rear-irradiated flexible dye-sensitized solar cells (DSSCs). The good catalytic activity, and cost-effectiveness highlight the potential applications of the transparent Ni–Se alloy CEs in flexible DSSCs.


RSC Advances ◽  
2019 ◽  
Vol 9 (38) ◽  
pp. 22092-22100 ◽  
Author(s):  
Shihan Zhang ◽  
Jingsha Jin ◽  
Dan Li ◽  
Zhiqiang Fu ◽  
Shufang Gao ◽  
...  

The good catalytic activity, resistance to iodine corrosion, and stability of carbon materials make them ideally suited for the fabrication of counter electrodes used in dye-sensitized solar cells (DSSCs).


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.


2013 ◽  
Vol 544 ◽  
pp. 101-104 ◽  
Author(s):  
Ya Qi Wang ◽  
Qing Hong Zhang ◽  
Hong Zhi Wang ◽  
Yao Gang Li

Pt counter electrodes (CE) were been prepared using ion sputtering method on indium-doped tinoxide coated polyethylene terephthalate (ITO-PET) for flexible dye-sensitized solar cells (DSSCs). The effect of sputtering time on the properties was characterized by Feld emission scanning electron microscope (FESEM), electrochemical impedance (EIS) and UV-vis absorption spectra. The flexible CE show increased catalytic activity but reduced transmittance when the sputtering time is increased from 0 to 80 s. The light-to-electricity conversion efficiency of the DSSCs assembled with the high catalytic activity flexible CE attained a conversion efficiency of 4.0% by using Ti foil as the photoanode substrate under the simulated AM 1.5 sunlight. The results reveal that ion sputtering is an effective method for depositing platinum nanoparticles on plastic substrates with low cost under room-temperature.


2015 ◽  
Vol 3 (31) ◽  
pp. 15905-15912 ◽  
Author(s):  
Xiuwen Wang ◽  
Buhe Batter ◽  
Ying Xie ◽  
Kai Pan ◽  
Yongping Liao ◽  
...  

α-NiS nanocrystals exhibit excellent catalytic activity for I3− reduction due to the strong interaction between I1 and α-NiS active sites.


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