Aziza, Miladina Rizka 
ORCID: https://orcid.org/0000-0001-8832-7398, Hasanah, Novrindah Alvi and Junikhah, Allin ORCID: https://orcid.org/0009-0001-5432-2457
(2025)
Electrochemical characteristics of Ca₂Naₙ₋₁NbₙO₃ₙ₊₁/PEDOT:PSS hybrid electrodes for environmentally friendly solar water splitting.
Presented at 15th International Conference on Green Technology (ICGT 2025), 29 Jul 2025 - 30 Jul 2025, Malang, Indonesia.
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Abstract
The development of functional electrode materials that combine
efficient charge transport with high electrochemical activity is critical for advancing integrated energy devices. In this study, we investigate the electrochemical characteristics of Ca₂Naₙ₋₁NbₙO₃ₙ₊₁/PEDOT:PSS (n = 4, 5, 6) hybrid electrodes, which focus on their suitability for solar water splitting application. Ca₂Naₙ₋₁NbₙO₃ₙ₊₁ (CNNO) nanosheets were obtained via mechanical exfoliation from bulk KCa₂Naₙ₋₁NbₙO₃ₙ₊₁ (KCNNO) materials and subsequently mixed with PEDOT:PSS to form P-N junction. The resulting CNNO/PEDOT:PSS dispersion was then drop-cast onto ITO glass substrates for performance evaluation. Cyclic voltammetry (CV) analysis reveals that CNNO5/PEDOT:PSS
exhibits the best CV performance, which reflects its enhanced charge storage and redox acitivity. However, electrochemical impedance spectroscopy (EIS) further reveals that CNNO4/PEDOT:PSS exhibits the lowest charge transfer resistance,
which is favorable for rapid carrier transport in photovoltaic interfaces. Overall, the electrochemical behavior of these hybrid Dion–Jacobson phase perovskite/PEDOT:PSS materials highlights their potential as electrode candidates for integrated solar water splitting systems and offers valuable insights for designing hybrid perovskite-based energy devices. This study contributes to
the development of sustainable and environmentally friendly hydrogen production technologies by enhancing the performance of hybrid electrodes for solar water splitting.
| Item Type: | Conference (Paper) |
|---|---|
| Keywords: | Hydrogen generation; water splitting; perovskite |
| Subjects: | 09 ENGINEERING > 0906 Electrical and Electronic Engineering |
| Divisions: | Faculty of Technology > Department of Electrical Engineering |
| Depositing User: | Miladina Rizka Aziza |
| Date Deposited: | 13 Jul 2026 15:11 |
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