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    Karakterisasi Material Perovskite Berbahan Non Timbal Menggunakan Kation Organik Formamidinium (Fa/Nh2chnh2)

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    Date
    2021
    Author
    Harahap, Nisrina
    Advisor(s)
    Sinuhaji, Perdinan
    Tarigan, Kerista
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    Abstract
    Perovskite based on formamidinium antimony trichloride (FASbCl3), is one of the materials proposed to replace lead-based perovskite, due to its high absorbance, high bandgap value and resistance to degradation. The manufacture of perovskite with solvent variations greatly affects the quality. In UV/Vis testing, the absorbance spectrum is at a wavelength of 300-650 nm, the band gap value for 0.5 ml solvent is 2.6 eV, 0.8 ml solvent is 2.4 eV and the most efficient is 1 ml solvent is 2.3 eV. Where the smaller the band gap value, it shows the greater the absorption of light energy into electrical energy. In XRD testing hexagonal crystals a = b ≠ c, where a = 13.798123, b = 13.798123 and c = 29.670500 with angle α = β = 90o, γ = 120o. However, there are still many diffraction peaks which are SbCl3 peaks. In SEM testing, the formed perovskite has been homogenyed, this corresponds to the XRD pattern whose crystalline shape points in one direction only (c-axis).
     
    Perovskite berbasis formamidinium antimoni triklorida (FASbCl3), adalah salah satu bahan yang diusulkan untuk menggantikan perovskite berbasis timbal, karena absorbansi dan nilai bandgap yang tinggi serta tahan degradasi. Pembuatan perovskite dengan variasi solvent sangat mempengaruhi kualitas. Pada karakterisasi UV/Vis, spektrum absorbansi pada panjang gelombang 300-650 nm, nilai band gap pada solvent 0.5 ml sebesar 2.6 eV, solvent 0.8 ml sebesar 2.4 eV dan pada solvent 1 ml sebesar 2.3 eV. Dimana semakin kecil nilai band gap, maka menunjukkan semakin besar daya serap energi cahaya menjadi energi listrik. Pada pengujian XRD terbentuk kristal heksagonal a = b ≠ c, dimana a = 13.798123, b = 13.798123 dan c = 29.670500 dengan sudut ..... Namun demikian, masih terdapat banyak puncak difraksi yang merupakan puncak SbCl3. Pada pengujian SEM, perovskite yang terbentuk telah homogeny, hal ini sesuai dengan pola XRD yang bentuk kristalnya mengarah pada satu arah saja (sumbu-c).

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    http://repositori.usu.ac.id/handle/123456789/37812
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    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV