Copper doped manganese dioxide as counter electrode for dye-sensitized solar cells
| Autor: | Belqasem Aljafari, Subbiah Vijaya, Arash Takshi, Sambandam Anandan |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Arabian Journal of Chemistry, Vol 15, Iss 9, Pp 104068- (2022) |
| Druh dokumentu: | article |
| ISSN: | 1878-5352 76443892 |
| DOI: | 10.1016/j.arabjc.2022.104068 |
| Popis: | Many materials have been tried as the counter electrode (CE) material as a substitute to the noble metal Pt in dye-sensitized solar cells (DSSCs). The CE property is critical to the operation of a DSSC as it catalyzes the reduction of I3- ions and retrieves the electrons from the photoanode. Here we have explored the application of manganese dioxide (MnO2) and copper-doped manganese dioxide (Cu-MnO2) nanoparticles as CE candidates for DSSCs mainly as low-cost alternatives to Pt. A simple hydrothermal method was followed to synthesize α-MnO2 and Cu-MnO2 nanoparticles at a temperature of 140 °C for 14 h. The nanoparticles were characterized to prove its electrocatalytic abilities for DSSCs. DSSC devices fabricated with 10 wt% Cu-MnO2 as CE showed the best VOC of 781 mV, ISC of 3.69 mA/cm2, FF of 0.50, and %PCE of 1.7 whereas Pt as CE showed VOC of 780 mV, ISC of 14.8 mA/cm2, FF of 0.43, and %PCE of 5.83 under 0.85 Sun. The low-cost feature of using Cu-MnO2 is encouraging to further study the factors that can improve the efficiency of DSSCs with alternative CEs to conventional Pt electrodes. |
| Databáze: | Directory of Open Access Journals |
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