Studi Pengaruh Penambahan Asam Askorbat dan Asam Oleat Terhadap Kestabilan dan Performa Perovskit MASnI3-xClx (x=0;2) Menggunakan Pelarut DMF

Fauzan, Farras Athala (2025) Studi Pengaruh Penambahan Asam Askorbat dan Asam Oleat Terhadap Kestabilan dan Performa Perovskit MASnI3-xClx (x=0;2) Menggunakan Pelarut DMF. Other thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Sel surya berbasis silikon memiliki biaya produksi tinggi, mendorong pengembangan alternatif seperti perovskit. Perovskit berbasis timbal menawarkan efisiensi baik, namun toksisitasnya memotivasi penggunaan timah sebagai pengganti. Sayangnya, timah rentan terhadap degradasi oksidatif, menurunkan stabilitas dan performa. Penelitian ini mensintesis material perovskit berbasis timah CH3NH3SnI3-xClx (x=0;2) menggunakan metode rekayasa anti-pelarut dengan variasi agen stabilisasi, yaitu asam askorbat dan asam oleat, pada konsentrasi 0%, 10%, 20%, dan 30%. Film perovskit disiapkan dengan metode drop casting pada suhu 135°C, lalu diuji stabilitas visual, absorbansi, energi celah pita (Uv-Vis), mikrostruktur dan komposisi (SEM / EDS), dan kekristalan (XRD). Hasil penelitian mengungkapkan bahwa penambahan asam askorbat dan asam oleat meningkatkan kestabilan dan performa material. Penambahan asam askorbat 20% dan 30% menunjukkan stabilitas dan performa terbaik pada MASnI3, sementara kombinasi penambahan asam askorbat 20% dan asam oleat optimal untuk MASnICl2.
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Silicon-based solar cells have high production costs, prompting the development of alternatives such as perovskites. Lead-based perovskites offer good efficiency, but their toxicity motivates using tin as a substitute. Unfortunately, tin is prone to oxidative degradation, decreasing stability and performance. This study synthesized the lead-based perovskite material CH3NH3SnI3-xClx (x=0;2) using an anti-solvent engineering method with a variety of stabilizing agents, namely ascorbic acid and oleic acid, at concentrations of 0%, 10%, 20%, and 30%. Perovskite films were prepared by drop casting method at 135°C and then tested for visual stability, absorbance, band gap energy (UV-Vis), microstructure and compositions (SEM / EDS), and crystallinity (XRD). The results revealed that adding ascorbic acid and oleic acid improved the stability and performance of the material. Adding 20% and 30% ascorbic acid showed the best stability and performance for MASnI3, while the combination of 20% ascorbic acid and oleic acid was optimal for MASnICl2.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Perovskit Timah Halida, Asam Askorbat, Asam Oleat, Stabilitas, Fotovoltaik.
Subjects:	Q Science > QC Physics > QC100 Crystals. Q Science > QC Physics > QC162 Adsorption and absorption Q Science > QC Physics > QC451 Spectroscopy Q Science > QC Physics > QC475 Photoluminescence
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Farras Athala Fauzan
Date Deposited:	27 Jan 2025 04:16
Last Modified:	27 Jan 2025 04:16
URI:	http://repository.its.ac.id/id/eprint/116939

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