Fabrication electrospun GO/CS/PVA nanofibers and their application in dye-sensitized solar cells

2021 ◽  
Vol 10 (4) ◽  
pp. 103-109
Author(s):  
Mai Ngo Truong Ngoc ◽  
Don Ta Ngoc ◽  
Hoa Nguyen Thi Quynh ◽  
Ngoc Nguyen Hong ◽  
Phat Vien Vinh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Electrical Energy ◽  
Average Diameter ◽  
Energy Conversion Efficiency ◽  
Bandgap Energy ◽  
Characteristic Functional ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this study, graphene oxide (GO) was prepared by the Hummers method. GO/CS/PVA fibers were prepared by an electrospinning method. The structure, morphology and size of the electrospun materials were characterized by X – ray diffraction (XRD) and a scanning electron microscope (SEM). Fourier transformation infrared (FTIR) was used to confirm the formation of PVA/CS/GO. Raman spectroscopy was used to analyze the characteristic functional groups of carbon materials in GO. GO/CS/PVA nanofibers were successfully synthesized with an average diameter of about 108 nm and the bandgap energy was 3.2 eV. The nanofibers were used as a counter electrode for dye-sensitized solar cells. With the natural dye extracted from magenta leaves and the counter electrode based on GO/CS/PVA, the solar energy-to-electrical energy conversion efficiency was 0.65%.

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.

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.

Carbon Nanoparticles for Counter Electrode Catalyst in Dye-Sensitized Solar Cells

2008 ◽  
Vol 1102 ◽  
Author(s):  
Prakash Joshi ◽  
Yu Xie ◽  
Jeremiah Mwaura ◽  
Mike Ropp ◽  
David Galipeau ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Carbon Nanoparticles ◽  
Counter Electrode ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Carbon Nanoparticle ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

AbstractWe report dye-sensitized solar cells using low cost carbon nanoparticles as an alternative to platinum as a counter-electrode catalyst for triiodide reduction. The counter carbon-electrode was deposited onto fluorine-doped tin oxide (FTO) by spin coating from an aqueous colloidal suspension of the blend of carbon nanoparticles and TiO2 nanocrystals. DSSC devices were fabricated using a stable Ru complex dye (Z-907) as the sensitizer. The cells based on carbon-nanoparticle counter electrode were made and then compared with those cells from platinum counter electrode at similar fabrication conditions. The results have shown that the device performance in terms of short circuit current density (Jsc), open circuit voltage (Voc) and energy conversion efficiency (η) from the cells based on carbon nanoparticle counter electrode were comparable to those from platinum counter-electrode devices. The carbon nanoparticle based cells have achieved an overall energy conversion efficiency of 5.55% under one sun AM 1.5 illumination (100 mW/cm2). The carbon nanoparticles showed significant potential as a low cost alternative to the current widely-used platinum.

Novel PtO decorated MWCNTs as a highly efficient counter electrode for dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 8307-8310 ◽  
Author(s):  
Xiao Chen ◽  
Jian Wei Guo ◽  
Yu Hou ◽  
Yu Hang Li ◽  
Shuang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
First Time ◽  
Sensitized Solar Cells

PtO–MWCNTs nanocomposites were prepared and applied as the counter electrode in dye-sensitized solar cells (DSCs) for the first time. Excellent energy conversion efficiency indicated that the nanocomposite was a promising electrocatalyst for DSCs.

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%.

scholarly journals Ionic Liquids Roles and Perspectives in Electrolyte for Dye-Sensitized Solar Cells

2020 ◽  
Vol 12 (18) ◽  
pp. 7598
Author(s):  
Ruwaida Asyikin Abu Talip ◽  
Wan Zaireen Nisa Yahya ◽  
Mohamad Azmi Bustam
Keyword(s):  
Ionic Liquids ◽  
Solar Cells ◽  
Energy Demand ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Electrical Energy ◽  
Energy Conversion Efficiency ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Exploration of renewable energy, such as solar energy, is imminent not only to cater to the escalating energy demand but also to address the uprising environmental issues due to heavy usage of non-renewable fossil fuel. The dye-sensitized solar cells (DSSCs) which are considered as the third-generation solar cells, have a huge potential to be commercialized due to their low cost, simplicity in fabrication, and promising photon-to-electrical energy conversion efficiency. Nevertheless, a high cell efficiency can only be achieved when an organic solvent is incorporated into the formulation of the electrolyte, which is prone to evaporation and leakage. As a result, DSSCs become unsuitable for long-run usage due to thermal instability in the electrolyte. The early intention of incorporating ionic liquids (ILs) into the electrolyte was to curb the abovementioned problem and to enable the DSSCs to function as a sustainable energy device. As such, this article briefly reviews how ILs have been incorporated into the electrolyte formulation and the extent of how the ILs can affect the cell efficiency in various electrolyte states. The role of the ILs in a range of electrolytes is also highlighted. This sheds light on the true purpose of introducing ILs into DSSC electrolyte, which is to enhance the ionicity of the electrolyte.

Branched ZnO Nanowires for Enhancing Energy Conversion Efficiency of Dye-Sensitized Solar Cells

2008 ◽  
Author(s):  
Hsin-Ming Cheng ◽  
Wei-Hao Chiu ◽  
Chia-Hua Lee ◽  
Song-Yeu Tsai ◽  
Wen-Feng Hsieh
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Zno Nanowires ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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