OPTIMIZATION OF METHYLAMMONIUM LEAD IODIDE (MAPBI3) BASED PEROVSKITE SOLAR CELL WITH TIN OXIDE AS ELECTRON TRANSPORT LAYER

• Main Author: Puspita, Melly
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/80627
• Institution: Institut Teknologi Bandung

Petroleum and coal are non-renewable energy sources and are the primary sources of energy in Indonesia. However, their reserves are diminishing every day. Additionally, the use of these sources as fuel for vehicles and steam power plants is a significant contributor to carbon emissions in Indonesia, which contradicts the government's commitment to implementing 'Indonesia Net Zero Carbon 2060'. Many new renewable energy developments are currently underway that are cleaner and more environmentally friendly than steam power plants, such as solar power plants. Indonesia lies on the equatorial line, which caused the sun shine all years long. Therefore, the use of solar power as a power plant is a viable option and considerable potential in Indonesia. A solar cell is a device that converts sunlight radiation into electricity. This research is focused on the development of perovskite solar cells (PSCs) due to their significant efficiency improvements compared to previous generations of solar cells. However, PSCs still face stability problems, and various factors can affect their stability, including the type of perovskite used, the selection of the electron transport layer (ETL), and the relative humidity. This research aimed to determine the best ETL to be used on solar cells with MAPbI3 or methylammonium lead iodide perovskite. The ETL types used were titanium diisopropoxide, thiourea modified tin oxide, and colloidal tin oxides derived from thermofisher scientific. In addition, the effect of temperature annealing of thiourea modified tin oxide on the performance of the solar cell was also investigated. This research demonstrates that addition of thiourea to SnO2 resulted in better PSCs performance compared to the use of ETL derived from titanium diisopropoxide or colloidal tin oxide. Furthermore, after varying the SnO2 annealing temperature to 180°C, 200°C, and 220°, the results of this work show that the optimal performance of PSC was achieved when the SnO2 was annealed at 200°C, which produced an efficiency of 9% , fill factor of 51%, Voc of 1.018 V, Jsc of 17.36 mA/cm2, and hysteresis index of 0.091.