Authors : Sonu

Volume/Issue : Volume 11 - 2026, Issue 4 - April

Google Scholar : https://tinyurl.com/ye7ktvhd

Scribd : https://tinyurl.com/5xn86fth

DOI : https://doi.org/10.38124/ijisrt/26apr1278

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Abstract : Supercapacitors and other energy storage devices have garnered a lot of attention due to their beneficial uses. In this sense, Halide perovskites (HPs) in two dimensions (2D) are attractive but relatively unexplored capacitor materials. 2D HPs have excellent properties such as superior electronic and ionic conductivity and also better stability compared to their 3D counterpart. 1,2 Improved stability originates from the incorporation of hydrophobic large organic amine into the perovskite structure. In our work, we have synthesized and studied 2D HPs to understand the super capacitive nature in presence and absence of light. We have synthesized and characterized our investigated materials by using FESEM, XRD, etc. Synthesized HPs have shown improved capacitive behavior and capacitance results and good operational stability owing to its slower ion kinetics. We fabricated electrodes by using a slurry through mixing of the active materials (perovskites) (70%), activated carbon (15%), and PVDF (15%) as a binder. onto a graphite sheet, followed by over-night drying at ∼70 °C under vacuum. Super capacitive behavior has been measured using electrochemical characterizations techniques such as galvanostatic charge discharge and cyclic voltammetry methods. The achieved specific capacitance values are 41 F/g, 18 F/g and 7.8 F/g at 0.1, 0.2 and 0.5 A/g current density, respectively. Preliminary research findings show promising results and good operational stability for 2D HPs based electrochemical supercapacitors. The operational stability can be attributed to the incorporation of hydrophobic organic ligands. Our work thus highlights the potential of unexplored 2D HPs as a futuristics supercapacitor material.

Keywords : Hybrid Halide Perovskites, Two-Dimensional, Energy Storage, Electrochemical Supercapacitors, Photo-Rechargeable.

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