Sintesis dan Karakterisasi Material Berbasis Perovskit Metilammonium Timbal Iodida (CH3NH3PbI3) dengan Metode Rekayasa Pelarut

Samudera, Rizky Agung (2025) Sintesis dan Karakterisasi Material Berbasis Perovskit Metilammonium Timbal Iodida (CH3NH3PbI3) dengan Metode Rekayasa Pelarut. Other thesis, Institut Teknologi Sepuluh Nopember.

Text Tugas Akhir_5001201115_Rizky Agung Samudera.pdf - Accepted Version Restricted to Repository staff only until 1 April 2027. Download (2MB) | Request a copy

Abstract

Sel surya berbasis perovskit telah menarik perhatian dalam pengembangan teknologi fotovoltaik karena potensinya untuk menghasilkan listrik dengan biaya rendah dan efisiensi tinggi. Penelitian ini bertujuan untuk mengetahui pengaruh variasi molar CH3NH3I (MAI) dan PbI2 dalam pelarut DMSO terhadap morfologi, absorbansi, resistivitas, dan kestabilan warna untuk pembuatan lapisan perovskit CH3NH3PbI3 (MAPI) serta mengetahui pengaruh variasi pelarut DMSO, DMF, dan penambahan asam askorbat pada pembentukan lapisan perovskit MAPI terhadap morfologi, absorbansi, resistivitas, dan kestabilan warna. Langkah kerja dalam penelitian ini, yaitu dengan pengaduk magnetik, PbI₂ dan MAI dilarutkan dalam DMSO dan diaduk selama 10` menit, sedangkan dengan ultrasonik digital, PbI₂ dan asam askorbat dilarutkan dalam DMF yang diultrasonikasi 10 menit. Ditambahkan MAI dan diultrasonikasi ulang. Deposisi larutan dilakukan dengan meneteskan larutan pada substrat yang dipanaskan dengan hot plate dengan suhu 110°C. Karakterisasi materia dilakukan dengan pengamatan visual, UV-Vis, resistivitas dengan metode Van der Pauw, dan SEM. Kesimpulan dalam penelitian ini, perbandingan rasio molar MAI : PbI2 : DMSO = 1:1:1 (variasi A) stabil dengan warna hitam hingga 24 jam dan mulai terdegradasi menjadi kuning pada 48 jam. Rasio 1:1:2 (variasi B) mengalami degradasi lebih cepat, dengan warna kuning muncul pada 24 jam. Rasio 2:1:1 (variasi C) berubah dari hitam menjadi kuning pada 48 jam. Rasio 1:1:1 (variasi A) terbukti sebagai komposisi dengan kualitas yang lebih baik daripada variasi B dan C. Penggunaan pelarut DMSO dapat meningkatkan kualitas lapisan dalam hal morfologi, absorbansi, resistivitas, dan kestabilan warna. Penambahan asam askorbat dalam pelarut DMF dapat meningkatkan absorbansi, kestabilan warna hingga 3-4 minggu dan melindungi dari degradasi dengan memperbaiki struktur kristal.
==================================================================================================================================
Perovskite-based solar cells have attracted attention in the development of photovoltaic technology because of their potential to generate electricity at low cost and high efficiency. This study aims to determine the effect of molar variations of CH3NH3I (MAI) and PbI2 in DMSO solvent on the morphology, absorbance, resistivity, and color stability for the preparation of CH3NH3PbI3 (MAPI) perovskite layers and to determine the effect of variations of DMSO, DMF, and the addition of ascorbic acid on the formation of MAPI perovskite layers on morphology, absorbance, resistivity, and color stability. The working steps in this study, namely with a magnetic stirrer, PbI₂ and MAI are dissolved in DMSO and stirred for 10 minutes, while with digital ultrasonic, PbI₂ and ascorbic acid are dissolved in DMF which is ultrasonicated for 10 minutes. MAI is added and re-ultrasonicated. Solution deposition is carried out by dripping the solution on a substrate heated with a hot plate at a temperature of 110°C. Material characterization was carried out by visual observation, UV-Vis, resistivity with the Van der Pauw method, and SEM. The conclusion in this study, the comparison of the molar ratio of MAI: PbI2: DMSO = 1:1:1 (variation A) is stable with a black color for up to 24 hours and begins to degrade to yellow at 48 hours. The ratio of 1:1:2 (variation B) degrades faster, with a yellow color appearing at 24 hours. The ratio of 2:1:1 (variation C) changes from black to yellow at 48 hours. The ratio of 1:1:1 (variation A) is proven to be a composition with better quality than variations B and C. The use of DMSO solvent can improve the quality of the coating in terms of morphology, absorbance, resistivity, and color stability. The addition of ascorbic acid in the DMF solvent can increase absorbance, color stability for up to 3-4 weeks, and protect against degradation by improving the crystal structure.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Absorbance, Color Stability, Perovskite, Resistivity, Solar Cell, Absorbansi, Kestabilan Warna, Perovskit, Resistivitas, Sel Surya
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:	Rizky Agung Samudera
Date Deposited:	27 Jan 2025 05:25
Last Modified:	27 Jan 2025 05:25
URI:	http://repository.its.ac.id/id/eprint/116940

Actions (login required)

View Item