Publication date: 17th February 2025
The growing need for renewable energy harvesting and storage has driven interest in photorechargeable batteries, which integrate solar energy harvesting and storage into a single system, reducing material consumption and space requirements. While progress has been made in developing photorechargeable electrode materials, optimizing photocathodes remains a challenge. Recent studies have explored metal halide perovskites for their exceptional solar energy harvesting properties and their potential use as electrode materials in lithium-ion batteries 1,2. The stability of these materials can be enhanced by incorporating organic spacer cations, making organic-inorganic metal halide perovskites viable candidates for various applications. In this work, we investigate lead iodide-based 2D metal halide perovskites with different spacer cations for their potential application as photocathodes. We analyze their charge carrier dynamics, lithium binding capabilities, and electrochemical properties, including voltage characteristics and ion migration behavior. Our findings contribute to the ongoing development of stable and efficient photocathodes for integrated energy harvesting and storage systems.
1. NSM Facility IIT Hyderabad
2. DST INSPIRE Fellowship
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