Effect of electropolymerization duration on the structure and performance of polypyrrole/graphene nanoplatelet counter electrode for dye-sensitized solar cells

Ohtani, Yuta; Kumano, Keita; Saneshige, Mami; Takami, Kei; Hoshi, Hajime

doi:10.1007/s10008-021-04944-8

Cited by 6 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polypyrrole-covered graphene-based nanoplatelets are synthesized via electrochemical synthesis by Ohtani et al The solar to electric power conversion efficiency of 4.30% was obtained, which is comparable to that of Pt-based counter-electrode (7.80%). η of PPy/GN-60 s containing DSSC was 3.3% which is even larger than DSSCs with Pt-based counter-electrode (3.00%) [ 102 ]. Another attempt to improve the performance of polypyrrole-based electrodes was done by Wu et al Hybrid films from polyoxometalate doped polypyyrrole were prepared by electrochemical method and were exploited as counter-electrode in DSSCs.…”

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

confidence: 99%

Polymers in High-Efficiency Solar Cells: The Latest Reports

et al. 2022

View full text Add to dashboard Cite

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.

show abstract

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

confidence: 99%

Polymers in High-Efficiency Solar Cells: The Latest Reports

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In 2020, F. L. Chawarambwa et al 8 used graphene and Si 3 N 4 nanoparticles mixed with poly (3, 4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and achieved a conversion efficiency of 5.24% (Pt CE was 5.37%). In 2021, Y. Ohtani et al 9 combined polypyrrole (PPy) with graphene nanoplatelets in a counter electrode and showed an optimum power efficiency of 4.3%. Recently, our previous work used activated carbon from agricultural residues mixed with PEDOT: PSS and achieved a conversion efficiency of 5.85% (Pt CE was 5.43%).…”

mentioning

confidence: 99%

Novel Micro-Ceramic Bottom Ash Mixed PEDOT:PSS/PVP for a Low-Cost Pt-Free Counter Electrode in a Dye Sensitized Solar Cell

Kanjana

Pimsopa

Maiaugree

et al. 2022

J. Electrochem. Soc.

View full text Add to dashboard Cite

This work presents a novel route for utilizing waste from power plants to create a new power source (solar cells). Bottom ash (BA) ceramic micro-particles were studied to improve an electrocatalytic activity in solar cell applications for the first time. In the counter electrodes (CE) of dye-sensitized solar cells (DSSC), bottom ash was mixed with PEDOT:PSS (PP) and polyvinylpyrrolidone (PVP) (BA/PP/PVP) in volume ratios of 3:7, 4:6, 5:5, and 6:4. We found that bottom ash has a significant impact in improving the electrocatalytic activity and DSSC efficiency of these cells. Moreover, the PP and PVP ratios have a high impact on solar cell performance. The BA/PP/PVP-(6:4) counter electrode attained a higher DSSC efficiency, 2.70%, compared to the other electrodes prepared under similar conditions and a Pt CE based DSSC (3.23%) at AM 1.5 (100 mWcm-2). The influences of bottom ash and PP/PVP ratios on film structure, electrocatalytic activity in reduction, redox reaction rate, and electron transport were characterized using scanning electron micros copy, cyclic voltammetry, Tafel, and, electrical impedance spectroscopy, respectively. The results show that low-cost BA/PP/PVP-(6:4) CE is a promising new alternative to Pt CEs in DSSCs.

show abstract