Performance of FTO-free conductive graphene-based counter electrodes for dye-sensitized solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41287-41293 ◽  
Author(s):  
Beili Pang ◽  
Lifeng Dong ◽  
Shuai Ma ◽  
Hongzhou Dong ◽  
Liyan Yu
Keyword(s):  
Solar Cells ◽  
Network Structure ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Free Graphene ◽  
Modified Graphene ◽  
Sensitized Solar Cells

Network structure graphene is used as an efficient counter electrode for DSSCs which is made from modified graphene after UV irradiation. The DSSCs with FTO-free graphene-based counter electrode exhibit an energy conversion efficiency of 9.33%.

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.

Highly flexible, conductive and catalytic Pt networks as transparent counter electrodes for wearable dye-sensitized solar cells

2015 ◽  
Vol 3 (45) ◽  
pp. 23028-23034 ◽  
Author(s):  
Ranran Zhou ◽  
Wenxi Guo ◽  
Ruomeng Yu ◽  
Caofeng Pan
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Nanotube Arrays ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

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).

Polyoxometalate modified transparent metal selenide counter electrodes for high-efficiency bifacial dye-sensitized solar cells

2021 ◽  
Author(s):  
Lu Zhang ◽  
Wei-Chao Chen ◽  
Ting Wang ◽  
Yun-Jiang Li ◽  
Chun-Hui Ma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Cost Benefit ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
One Step ◽  
Sensitized Solar Cells

In the development of bifacial dye-sensitized solar cells (DSSCs), the exploration of cost-benefit transparent counter electrode is a permanent target. Herein, we put forward a simple one-step strategy to load...

Organic molecule controlled synthesis of three-dimensional rhododendron-like cobalt sulfide hierarchitectures as counter electrodes for dye-sensitized solar cells

RSC Advances ◽  
2014 ◽  
Vol 4 (79) ◽  
pp. 42087-42091 ◽  
Author(s):  
Lijuan Sun ◽  
Yu Bai ◽  
Kening Sun
Keyword(s):  
Solar Cells ◽  
Organic Molecule ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Three Dimensional ◽  
Cobalt Sulfide ◽  
Controlled Synthesis ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Organic molecule controlled synthesis of three-dimensional rhododendra-like CoS and its application as counter electrode in DSSCs.

Improved Efficiency of Dye-Sensitized Solar Cells Using a Vertically Aligned Carbon Nanotube Counter Electrode

2010 ◽  
Vol 132 (2) ◽  
Author(s):  
Robert A. Sayer ◽  
Stephen L. Hodson ◽  
Timothy S. Fisher
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
Microwave Plasma ◽  
Dye Sensitized Solar Cells ◽  
Planar Geometry ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Cnt Arrays ◽  
Vertically Aligned ◽  
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 vertically 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 trilayer (Ti/Al/Fe) catalyst. The resulting arrays are 30 μm in height and have a number density of approximately 5×108/mm2. 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.

A novel strategy to prepare a Pt–SnO2 nanocomposite as a highly efficient counter electrode for dye-sensitized solar cells

2014 ◽  
Vol 2 (41) ◽  
pp. 17253-17257 ◽  
Author(s):  
Xiao Chen ◽  
Yu Hou ◽  
Shuang Yang ◽  
Xiao Hua Yang ◽  
Hua Gui Yang
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Dye Sensitized ◽  
One Step ◽  
Novel Strategy ◽  
Sensitized Solar Cells ◽  
Better Than

A novel strategy was introduced to prepare Pt–SnO2 nanocomposite in one step. Pt–SnO2 nanocomposite counter electrode based dye-sensitized solar cells achieve an energy conversion efficiency of 8.83%, better than that for SnO2 CE and comparable with Pt CE based DSCs.

Functionalized Reduced Graphene Oxide Loaded Aligned Carbon Nanotube Layer Used as Counter Electrode for Dye-Sensitized Solar Cells

2020 ◽  
Vol 20 (3) ◽  
pp. 1749-1755 ◽  
Author(s):  
Jing Ma ◽  
Hai-Lian Yang ◽  
Wei-Hua Ren
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Carbon Nanotube ◽  
Reduced Graphene Oxide ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells

A novel bilayer counter electrodes for Dye-sensitized Solar Cells (DSSCs) made of reduced graphene oxide (RGO) and aligned carbon nanotube (ACNT) was developed. The underlayer ACNT severs as a transition layer for RGO. The overlayer of RGO plays the role of catalytic layer. It was demonstrated that the property of graphene counter electrode was adversely affected by aggregation, by adding surfactant, the aggregation of graphene can be inhabited effectively. Moreover, the interface between the RGO and the ACNT can be optimized by surfactant functionalization of RGO. After screening, a cationic surfactant cetylpyridinium chloride (CPC) functionalized RGO, code as CPC-RGO, exhibits the best performance. Compare to the ACNT based counter electrode and other surfactant functionalized RGO/ACNT based bilayer counter electrodes, the CPC-RGO/ACNT reduced interface resistance and improved the double chemical capacitance efficiently, thus uplifting the short circuit current density and fill factor from 7.35 to 8.8 mA cm-2, and 59.87 to 62.79, respectively. Eventually, the CPC-RGO/ACNT based DSSC giving a power conversion efficiency of 3.9%, which is 1.24-fold than that of ANCT based DSSC, because of the best splay degree of CPC/RGO.

An efficient counter electrode material for dye-sensitized solar cells—flower-structured 1T metallic phase MoS2

2016 ◽  
Vol 4 (32) ◽  
pp. 12398-12401 ◽  
Author(s):  
Wei Wei ◽  
Kai Sun ◽  
Yun Hang Hu
Keyword(s):  
Solar Cells ◽  
Electrode Material ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Metallic Phase ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Counter Electrode Material ◽  
Fto Glass

A flower-structured 1T metallic phase MoS2 film was directly grown onto a FTO glass as a counter electrode for DSSCs, leading to an excellent energy conversion efficiency of 7.08%, which is 3 times larger than that of the DSSC with a 2H MoS2 counter electrode.

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