Path: TopS1-Final ProjectMaterial Engineering-FTMD2011

SINTESIS DAN KARAKTERISASI NICKEL OXIDE THIN FILM DENGAN METODE SELF ASSEMBLED MONOLAYERS (SAMs)

SYNTHESIS AND CHARACTERIZATION NICKEL OXIDE THIN FILM PREPARED BY SELF ASSEMBLED MONOLAYERS (SAMS) METHOD

Undergraduate Theses from JBPTITBPP / 2017-10-09 10:32:50
Oleh : BATARA YUNAN (NIM : 13707003); Pembimbing : Dr.Ir. Bambang Sunendar Purwasasmita M.Eng, S1 - Material Engineering Study Programme
Dibuat : 2011, dengan 7 file

Keyword : Nickel Oxide Thin Film, Metode Self Assembled Monolayers (SAMs), sifat optik

Mikrostruktur dan karakteristik optik dari nickel oxide thin film yang disintesis dengan menggunakan metode Self Assembled Monolayers (SAMs) telah diteliti. Nickel oxide thin film dibuat diatas substrat dengan variasi parameter yang meliputi waktu perendaman (12 dan 24 jam) dan penggunaan kitosan (dengan kitosan dan tanpa kitosan). Mikrostruktur dan sifat optik diamati dengan karakterisasi menggunakan X-Ray Diffraction, Scanning Electron Microscope, serta UV-Visible Spectroscopy. Pengaruh waktu perendaman selama 12 dan 24 jam telah diteliti. Transmitansi berkurang seiring dengan lamanya waktu




perendaman karena thin film yang dihasilkan semakin tebal. Berdasarkan hasil XRD, thin film yang dihasilkan memiliki struktur NiO dengan tiga puncak utama yang memiliki orientasi pada bidang (111), (200), dan (220). Morfologi




permukaan memperlihatkan pertumbuhan lapisan dengan mode pertumbuhan mixed growth (Stranski – Krastanov). Hasil UV-Visible Spectroscopy menunjukkan penggunaan kitosan akan menurunkan transmitansi cahaya, dengan transmitansi cahaya tertinggi menggunakan kitosan sebesar 48,1%. Secara umum




transmitansi cahaya akan berkurang seiring dengan lamanya waktu perendaman. Band gap optik diperoleh pada nilai 3,75 eV – 3,9 eV.

Deskripsi Alternatif :

Microstructure and optical characteristic of nickel oxide thin film deposited by self assembled monolayers (SAMs) method have been studied. Nickel oxide thin films were prepared on glass substrates with parameter variation which is involved immersing time (12 and 24 hours) and chitosan (with and without chitosan). The microstructure and optical properties was investigated by x-ray diffraction, scanning electron microscope, and UV-Visible spectroscopy. The effect of immersing time for 12 and 24 hours has been investigated. Optical transmittance decreased when the immersing time was longer because obtained thin films were thicker. Based on XRD data, thin films prepared by SAMs had the structure of NiO which had three strongest peaks at (111), (200), and (220). Surface morphology shows that thin films growth mode are mixed growth (Stranski – Krastanov). UV-Visible spectroscopy results that chitosan made the optical transmittance decreased, with optical transmittance maximum at 48,1%. Optical transmittance decreased by increasing of the immersing time. Band gap optic results at 3,75 eV – 3,9 eV.

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  • Pembimbing : Dr.Ir. Bambang Sunendar Purwasasmita M.Eng, Editor: Alice Diniarti

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