scholarly journals Crystalline poly(triazine imide) based g-CN as an efficient electrocatalyst for counter electrodes of dye-sensitized solar cells using a triiodide/iodide redox electrolyte

2015 ◽  
Vol 3 (48) ◽  
pp. 24232-24236 ◽  
Author(s):  
Woo-ram Lee ◽  
Young-Si Jun ◽  
Jihee Park ◽  
Galen D. Stucky
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Pt Catalyst ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Photovoltaic Efficiency ◽  
Redox Electrolyte ◽  
Sensitized Solar Cells

DSSCs using g-CN as an electrocatalyst exhibit photovoltaic efficiency comparable to that of conventional Pt catalyst.

PtSn/GO Co-Catalyst for Quasi-Solid-State Dye Sensitized Solar Cells

2018 ◽  
Vol 283 ◽  
pp. 55-64
Author(s):  
Voranuch Somsongkul ◽  
Surassawatee Jamikorn ◽  
Chanu Photiphitak ◽  
Thapanee Sarakonsri ◽  
Viratchara Laokawee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Pt Catalyst ◽  
Counter Electrodes ◽  
Electron Hole ◽  
Co Catalyst ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye sensitized solar cells (DSSCs) consist of photoanodes (dye adsorbed porous semiconductor film), electrolytes and counter electrodes. Nanostructured materials play important parts in both the photoanodes and the counter electrodes, while dyes are there to absorb photons and generate electron-hole pairs and electrolytes are there to transfer electrons from the photoanodes to the counter electrodes. In this study, to enhance light absorption and minimize electron-hole recombination, Ag nanoparticles and MgO nanolayer were coated on TiO2, respectively. To enable a long lifetime, i.e. avoiding liquid electrolyte leakage, quasi-solid-state (QSS) DSSCs were fabricated. PtSn nanoparticles were prepared by a simple chemical reduction method on graphene oxide (GO) to compare with conventional Pt catalyst on FTO substrates as counter electrodes. An average efficiency of the QSS DSSCs with PtSn/GO co-catalysts was found to outperform that of the QSS DSSCs with conventional Pt catalyst. A mixed microstructure of the PtSn/GO co-catalyst was observed. Although, PtSn2 and Pt2Sn3 phases were suggested by XRD, in a small region observed by EDX-STEM, it was found that C, O and Si were distributed uniformly on the graphene oxide film. Pt was also distributed uniformly, but the signal was low so there were only a few X-Ray counts across the image. There was no sign of Pt being concentrated in the particles. However, Sn was found to be concentrated in the particles without any other elements.

Performances of MnWO4@AC mixed oxide composite materials as Pt-free counter electrodes for high efficiently dye sensitized solar cells

2021 ◽  
Vol 45 (3) ◽  
pp. 1686-1694
Author(s):  
Kezhong Wu ◽  
Pengyuan Fu ◽  
Bei Ruan ◽  
Mengmeng Wu ◽  
Mingxing Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Cost Effectiveness ◽  
Composite Materials ◽  
Mixed Oxide ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Pt Catalyst ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Replacing the expensive Pt catalyst of counter electrodes (CEs) with a low-cost Pt-free catalyst has been regarded as one of the crucial steps for cost effectiveness of dye-sensitized solar cells (DSSCs).

scholarly journals Iron Pyrite Thin Film Counter Electrodes for Dye-Sensitized Solar Cells: High Efficiency for Iodine and Cobalt Redox Electrolyte Cells

ACS Nano ◽  
2014 ◽  
Vol 8 (10) ◽  
pp. 10597-10605 ◽  
Author(s):  
Sudhanshu Shukla ◽  
Nguyen Huu Loc ◽  
Pablo P. Boix ◽  
Teck Ming Koh ◽  
Rajiv Ramanujam Prabhakar ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Iron Pyrite ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Redox Electrolyte ◽  
Sensitized Solar Cells

Carbon nanotube-carbon black hybrid counter electrodes for dye-sensitized solar cells and the effect on charge transfer kinetics

2021 ◽  
Author(s):  
Christian Abel Cruz-Gutiérrez ◽  
Rosa María Félix-Navarro ◽  
Julio Cesar Calva-Yañez ◽  
Carolina Silva-Carrillo ◽  
Shu Wai Lin-Ho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Carbon Nanotube ◽  
Carbon Black ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
Sign in / Sign up

Export Citation Format

Share Document