SINTESIS DAN KARAKTERISASI PEROVSKI HIBRIDA CH3NH3Sn0,5Pb0,5X3(X=I DAN Cl) DENGAN REKAYASA KOMPOSISI

Ramadhan, Naufal Nadhir Rachmad (2024) SINTESIS DAN KARAKTERISASI PEROVSKI HIBRIDA CH3NH3Sn0,5Pb0,5X3(X=I DAN Cl) DENGAN REKAYASA KOMPOSISI. Other thesis, INSTITUT TEKNOLOGI SEPULUH NOPEMBER.

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Abstract

Aplikasi perovskit hibrida pada bidang panel surya banyak diteliti dikarenakan efisiensi yang cukup tinggi dan banyak menarik perhatian karena biaya pembuatan yang murah. Methylammonium Lead Iodida (CH3NH3PbI3) dan Methylammonium Lead Bromida (CH3NH3PbBr3) merupakan perovskite hibrida yang umumnya digunakan untuk aplikasi solar sel. Perovskit hibrida ini memiliki rumus molekul ABX3, dimana A dan B berperan sebagai kation dan X berperan sebagai anion. Kekurangan CH3NH3PbI3 dan CH3NH3PbBr3 antara lain adalah toksitas timbal dan cepat waktu degenerasi yang cepat akibat adanya unsur organik. Metode untuk mengatur celah energi, kesetabilan, dan absorbansi salah satunya dengan menggunakan desain komposisi. Pada penelitian ini digunakan desain komposisi perovskit dalam penelitian ini adalah CH3NH3Pb0.5Sn0.5I2Cl dengan variasi molar CH3NH3I:(SnCl2/PbI2):DMSO = 1:1:1 (sampel A), 1:1:2 (sampel B), dan 2:1:1 (sampel C). Pelarut yang digunakan adalah dimetilsulfioksida (DMSO) untuk pembuatan lapisan yang mudah dengan menggunakan drop casting, pada suhu 115oC dengan waktu pengeringan 10 menit. Selanjutnya lapisan perovskit ini dikarakterisasi menggunakan uji perubahan warna, uji SEM, UV–Vis, dan resistivitas untuk mendapatkan informasi kestabilan lapisan absorbansi dan resistivitas. Hasil penelitian menunjukkan bahwa sampel C memiliki kestabilan dan absorbansi yang lebih baik hingga 3 jam. Foto SEM menunjukan bekas batas butir berukuran mikrometer dengan ketebalan yang tidak merata. Hasil pengukuran resistivitas dengan metode Van der Pauw pada tiga variasi sampel perovskit menunjukan semakin lama sampel dibiarkan maka resistivitasnya meningkat seiring bertambahnya waktu.
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The application of hybrid perovskites in the field of solar panels has been widely studied due to their high efficiency and has attracted much attention due to their low manufacturing costs. Methylammonium Lead Iodide (CH3NH3PbI3) and Methylammonium Lead Bromide (CH3NH3PbBr3) are hybrid perovskites that are commonly used for solar cell applications. This hybrid perovskite has a molecular formula of ABX3, where A and B act as cations and X acts as an anion. The disadvantages of CH3NH3PbI3 and CH3NH3PbBr3 include lead toxicity and rapid degeneration time due to the presence of organic elements. One method for regulating the energy gap, stability, and absorbance is by using composition design. In this study, the perovskite composition design used in this study is CH3NH3Pb0.5Sn0.5I2Cl with molar variations of CH3NH3I:(SnCl2/PbI2):DMSO = 1:1:1 (sample A), 1:1:2 (sample B), and 2:1:1 (sample C). The solvent used is dimethyl sulfoxide (DMSO) for easy layer preparation using drop casting, at a temperature of 115 oC with a drying time of 10 minutes. Furthermore, this perovskite layer was characterized using a color change test, SEM test, UV-Vis, and resistivity to obtain information on the stability of the absorbance and resistivity layers. The results showed that sample C had better stability and absorbance for up to 3 hours. SEM photos show micrometer-sized grain boundaries with inhomogeneous thickness. The results of resistivity measurements using the Van der Pauw method on the three variations of perovskite samples show that the longer the sample is left in free air, the more its resistivity increases over time.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	ABX3, Celah Energi, CH3NH3PbI3, MAI, Perovskite Hibrida ========================================================= ABX3, CH3NH3PbI3, Energygap, Hybrid Perovskite, MAI
Subjects:	Q Science > QC Physics > QC162 Adsorption and absorption
Divisions:	Faculty of Mathematics and Science > Mathematics > 44201-(S1) Undergraduate Thesis
Depositing User:	Naufal Nadhir Rachmad Ramadhan
Date Deposited:	12 Aug 2024 04:07
Last Modified:	12 Aug 2024 04:07
URI:	http://repository.its.ac.id/id/eprint/114743

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