Enhanced catalytic property of transparent PEDOT counter electrodes for bifacial dye sensitized solar cells

“…The optimum concentration with the highest PCE was found to be in the Pt-10/PEDOT counter-electrode. By using the Pt-10/PEDOT electrode, the energy conversion efficiency was 6.77% when illuminating from the front side [ 113 ]. In a recent work by Gemeiner et al, various counter-electrodes were fabricated by screen-printing the poly(3,4-ethylenedioxythiophene): poly(styrene sulphonate).…”

Section: Polymers In Dye-sensitized Solar Cells (Dsscs)mentioning

confidence: 99%

Polymers in High-Efficiency Solar Cells: The Latest Reports

et al. 2022

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Third-generation solar cells, including dye-sensitized solar cells, bulk-heterojunction solar cells, and perovskite solar cells, are being intensively researched to obtain high efficiencies in converting solar energy into electricity. However, it is also important to note their stability over time and the devices’ thermal or operating temperature range. Today’s widely used polymeric materials are also used at various stages of the preparation of the complete device—it is worth mentioning that in dye-sensitized solar cells, suitable polymers can be used as flexible substrates counter-electrodes, gel electrolytes, and even dyes. In the case of bulk-heterojunction solar cells, they are used primarily as donor materials; however, there are reports in the literature of their use as acceptors. In perovskite devices, they are used as additives to improve the morphology of the perovskite, mainly as hole transport materials and also as additives to electron transport layers. Polymers, thanks to their numerous advantages, such as the possibility of practically any modification of their chemical structure and thus their physical and chemical properties, are increasingly used in devices that convert solar radiation into electrical energy, which is presented in this paper.

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“…Extensive investigations have been carried out on diverse carbonaceous materials such as activated carbon, graphene, carbon black (CB), single-walled carbon nanotubes, multiwalled carbon nanotubes and carbon nanohorns, etc. ,− Among the carbonaceous materials, CB is the cheapest − and is considered one of the suitable materials to be used as CE materials for cells using cobalt LEs rather than iodide LEs to obtain high cell efficiency. In recent years, poly(3,4-ethylenedioxythiophene) (PEDOT) polymers have received much attention for use as a CE catalyst, ,− particularly for DSSCs using copper LEs ,− due to their high catalytic activity. The PEDOT-based composite materials have been developed and utilized as CEs for several years to fabricate DSSCs. − The cells using the composite CEs have better PCEs than the cells using the corresponding single-material CEs.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Carbon Black-Based Counter Electrodes for Copper (I)/(II)-Mediated Dye-Sensitized Solar Cells

Venkatesan

Chuang

Teng

et al. 2023

ACS Sustainable Chem. Eng.

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Carbon black (CB) is a readily available, inexpensive carbonaceous material with good catalytic activity, which has been utilized alone or in composites to fabricate highly efficient counter electrodes (CEs) for dye-sensitized solar cells (DSSCs) employing copper redox couple. First, the catalytic activities of the CEs with various CB layers were evaluated and the results reveal that the number of CB layers is an important factor determining the electrochemical behaviors of the CEs. At the optimal CB layers, the CE has an electrocatalytic activity higher than that of the Pt CE and the power conversion efficiency (PCE) of the corresponding DSSC (8.58%) sensitized by Y123 is also higher than that of the cell using Pt (6.89%). To further increase the performance of the CEs, a poly(3,4-ethylenedioxythiophene) (PEDOT) film is deposited on the CB/FTO CEs, forming PEDOT/CB/FTO composite CEs. It shows that the PEDOT/CB/FTO CEs have even higher electrocatalytic activity than the plain CB, PEDOT, and Pt ones. By using these PEDOT/CB/FTO CEs, a PCE of 10.08% can be achieved. Under room light conditions, the cells can also achieve a high PCE of 26.21% (1500 lux). The cells using the composite CEs have good stability.

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Enhanced catalytic property of transparent PEDOT counter electrodes for bifacial dye sensitized solar cells

Cited by 11 publications

References 37 publications

Dye-sensitized solar cells strike back

Dye-sensitized solar cells strike back

Polymers in High-Efficiency Solar Cells: The Latest Reports

High-Performance Carbon Black-Based Counter Electrodes for Copper (I)/(II)-Mediated Dye-Sensitized Solar Cells

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