Sintesis Green Perovskite Dari Timbal Campuran Anoda dan Katoda Aki Mobil Untuk Pembuatan Material Fotovoltaik (PV)

Abstract

This research aims to develop a more environmentally friendly method for recycling car batteries to produce lead iodide (PbI2) using a mixture of anode and cathode materials from the batteries, which will then be used in the synthesis of halide perovskite. The process involves several key stages: separation of lead paste from the battery, reduction with glucose monohydrate, sulfation with sulfuric acid, desulfurization with sodium hydroxide, and reaction with hydroiodic acid to produce PbI2. The resulting PbI2 is then used to synthesize perovskite material with Formamidinium Iodide (FAI) as the precursor, which is drop-cast and dried to form a thin film of halide perovskite semiconductor. The final results of this research indicate that PbO obtained from recycling used car batteries can be efficiently converted into FAPbI3 perovskite. The perovskite material produced showed a bandgap value of 1.4974 eV for an anode to cathode ratio of 1:1, 1.4770 eV for a ratio of 1:3, and 1.5197 eV for a ratio of 3:1. Characterization was carried out using UV-Vis spectrophotometry and SEM-EDS to ensure the quality and structure of the resulting material.