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Ionovoltaic Power Generation based on Lead-Free Layered Cs3Bi2Br9 Perovskites Nanosheets

Lookup NU author(s): Dr Stevin PramanaORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

Ionovoltaic electricity generation (IEG) is a groundbreaking concept in energy conversion that holds water motion and ion dynamics to produce electrical energy. This innovative approach involves the use of moisture induced power generator, which harnesses ambient moisture to generate electricity. The process begins with the asymmetric adsorption of moisture, which establishes a gradient in ion concentration across the material. This gradient prompts ions to migrate, creating a potential difference. As a result, electrons are driven to move through an external circuit, thereby generating electrical energy. In this study, we explore the ionovoltaic capabilities of 2-dimensional (2D) lead-free halide perovskite for electricity generation through moisture absorption. Specifically, we focus on the Cs₃Bi₂Br₉ perovskite, which exhibits unique ionic properties. Our findings reveal that this material achieves an impressive peak open circuit voltage (V_oc) of 0.257 V and a short circuit current (I_sc) of 25 µA at 85% relative humidity (RH).

Publication metadata

Author(s): Pramod AK, Pramana SS, Batabyal SK

Publication type: Article

Publication status: Published

Journal: Next Materials

Year: 2025

Volume: 6

Print publication date: 01/01/2025

Online publication date: 31/07/2024

Acceptance date: 08/07/2024

Date deposited: 09/07/2024

ISSN (electronic): 2949-8228

Publisher: Elsevier

URL: https://doi.org/10.1016/j.nxmate.2024.100309

DOI: 10.1016/j.nxmate.2024.100309

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