Studi Pengaruh Formamidinium (FA) Dalam Sintesis Dan Kestabilan Perovskit MA1-XFAXSnI3 Dengan X = 0; 0,25; 0,50; 0,75; 1

Nugraha, Adhelia Benny (2025) Studi Pengaruh Formamidinium (FA) Dalam Sintesis Dan Kestabilan Perovskit MA1-XFAXSnI3 Dengan X = 0; 0,25; 0,50; 0,75; 1. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan jumlah penduduk dan perkembangan ekonomi global membuat kebutuhan energi terus meningkat. Sumber energi fosil yang semakin menipis dan berdampak buruk bagi lingkungan mendorong pencarian alternatif yang lebih berkelanjutan. Salah satu solusi yang menjanjikan adalah sel surya berbasis perovskit, yang mampu mengubah energi matahari menjadi listrik dengan efisiensi tinggi dan biaya produksi lebih rendah dibandingkan sel surya silikon konvensional. Perovskit berbasis timbal (Pb) telah banyak dikembangkan, tetapi memiliki masalah toksisitas dan kurang stabil di lingkungan. Sebagai alternatif, perovskit berbasis timah (Sn) menawarkan keunggulan seperti mobilitas pembawa muatan yang tinggi dan celah pita yang lebih sempit. Namun, material ini mudah teroksidasi dari Sn2+ menjadi Sn4+, yang menyebabkan degradasi dan menurunkan kinerjanya. Oleh karena itu, diperlukan strategi stabilisasi untuk meningkatkan daya tahan dan performa material ini. Penelitian ini bertujuan untuk mensintesis dan mengevaluasi kestabilan perovskit berkation ganda MA1-XFAXSnI3 menggunakan pelarut DMF dan variasi mol FA+ dengan (X = 0; 0,25; 0,50; 0,75; dan 1). Selain itu, dilakukan penambahan asam askorbat (AA) dengan konsentrasi 10% dan 20% untuk menekan oksidasi Sn2+. Sintesis dilakukan dengan metode drop casting pada substrat kaca dan dipanaskan pada suhu 130°C pada atsmosfer biasa tanpa penggunaan glove box. Karakterisasi material meliputi analisis secara visual, struktur kristal dengan XRD, morfologi dengan SEM/EDX, serta sifat optik menggunakan Vis-Spektrofotometer. Hasil penelitian ini diharapkan dapat memberikan wawasan mengenai rasio optimal MA+ dan FA+, serta efek penambahan AA terhadap kestabilan dan performa perovskit berbasis Sn, sehingga dapat dikembangkan lebih lanjut untuk aplikasi sel surya yang lebih ramah lingkungan.
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The increase in global population and economic development has led to a continuous rise in energy demand. The depletion of fossil energy sources and their detrimental environmental impact have prompted the search for more sustainable alternatives. One promising solution is perovskite-based solar cells, which can convert solar energy into electricity with high efficiency and lower production costs compared to conventional silicon-based solar cells. Lead (Pb)-based perovskites have been widely developed, but they suffer from toxicity issues and instability in environmental conditions. As an alternative, tin (Sn)-based perovskites offer advantages such as higher charge carrier mobility and narrower bandgap energy. However, these materials are prone to oxidation from Sn2+ to Sn4+, leading to degradation and reduced performance. Therefore, stabilization strategies are required to enhance the durability and performance of these materials. This study aims to synthesize and evaluate the stability of double-cation perovskite MA1-XFAXSnI3 using DMF as a solvent, with variations in the FA+ molar (X = 0; 0.25; 0.50; 0.75; and 1). Additionally, ascorbic acid (AA) was added at concentrations of 10% and 20% to mitigate Sn2+ oxidation. Synthesis was conducted via a drop casting method on glass substrates, followed by heating at 130°C under ambient conditions without the use of a glove box. Material characterization included visual analysis, crystal structure assessment using XRD, morphology observation through SEM/EDX, and optical properties using a Vis-Spectrophotometer. The findings of this study are expected to provide insights into the optimal MA+ and FA+ ratio, as well as the effects of AA addition on the stability and performance of Sn-based perovskites, potentially advancing their development for more environmentally friendly solar cell applications.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Drop Casting, Formamidinium, MA1-XFAXSnI3, Perovskit Berbasis Timah ====================================================== Drop Casting, Formamidinium, MA1-XFAXSnI3, Sn-based Perovskit
Subjects:	Q Science > QC Physics > QC100 Crystals. Q Science > QC Physics > QC451 Spectroscopy
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics
Depositing User:	Adhelia Benny Nugraha
Date Deposited:	04 Aug 2025 07:32
Last Modified:	04 Aug 2025 07:32
URI:	http://repository.its.ac.id/id/eprint/124162

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