Analisis Pengaruh Struktur Kristal dan Morfologi Thin Film Perovskite CsPbBr3 Untuk Aplikasi Fotoanoda

Maulida, Vindi Mardatillah (2022) Analisis Pengaruh Struktur Kristal dan Morfologi Thin Film Perovskite CsPbBr3 Untuk Aplikasi Fotoanoda. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perovskite CsPbBr3 memiliki potensi yang menjanjikan sebagai fotoanoda karena rentang respon cahaya yang luas, struktur kristal yag stabil, dan tingkat konsumsi elektron yang baik. namun, belum dilakukan uji terkait morfologi CsPbBr3 pada thin film untuk aplikasi fotoanoda. Penelitian ini bertujuan untuk menganalisis pengaruh struktur kristal dan morfologi thin film perovskite CsPbBr3 yang diberi temperature heat treatment sebesar 90°C, 110°C, 120°C. Metode sintesis yang digunakan dalam penelitian ini yaitu Ligan Assisted Reprecipitation (LARP) dan fabrikasi menggunakan drop-casting. Pengujian yang dilakukan adalah uji morfologi dengan pengujian XRD, SEM, dan pengujian elektrokimia menggunakan uji CV. Hasil menunjukan terbentuk perovskite CsPbBr3/Cs4PbBr6/CsPb2Br5 yang stabil hingga 120℃ dan terjadi penurunan ukuran kristal seiring kenaikan temperatur. Struktur perovskite CsPbBr3/Cs4PbBr6/CsPb2Br5 yang dihasilkan memiliki bentuk kubus dan wires yang merupakan fasa CsPb2Br5. Setelah dilakukan uji CV didapatkan nilai potensial katoda-anoda dengan ∆V terendah yaitu 2,29 V. Selain itu, nilai anoda dan katoda mengindikasikan adanya reaksi redoks sehingga perovskite CsPbBr3/Cs4PbBr6/CsPb2Br5 berpotensi untuk aplikasi fotoanoda.
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Perovskite CsPbBr3 has a promising potential as a photoanode because of its wide light response range, stable crystal structure, and good electron consumption rate. however, no tests have been carried out regarding the morphology of CsPbBr3 on thin films for photoanode applications. This study aims to analyze the effect of the crystal structure and morphology of the CsPbBr3 perovskite thin film which was given a heat treatment temperature of 90°C, 110°C, 120°C. The synthesis method used in this research is Ligand Assisted Reprecipitation (LARP) and fabrication using drop-casting. The tests carried out were morphological tests with XRD, SEM, and electrochemical tests using the CV test. The results showed that the perovskite CsPbBr3/Cs4PbBr6/CsPb2Br5 was formed which was stable up to 120℃ and the crystal size decreased with increasing temperature. The resulting CsPbBr3/Cs4PbBr6/CsPb2Br5 perovskite structure has the shape of a cube and wires are CsPb2Br5 phases. After the CV test, the cathode-anode potential value with the lowest V was 2.29 V. In addition, the anode and cathode values indicated a redox reaction so that the CsPbBr3/Cs4PbBr6/CsPb2Br5 perovskite has potential for photoanode applications.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Drop-casting, Fotoanoda, Perovskite CsPbBr3
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. T Technology > TJ Mechanical engineering and machinery > TJ810.5 Solar energy
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Vindi Mardatillah Maulida
Date Deposited:	04 Feb 2022 03:03
Last Modified:	17 Jul 2024 06:36
URI:	http://repository.its.ac.id/id/eprint/92761

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