CD Skripsi

Analisa Struktur, Morfologi Dan Sifat Optik Lapisan Tipis Nanorod Zno Di-Doping Sulfur

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Optimizing the physical properties of the semiconductor ZnO (Zinc Oxide) can be done through the addition of impurities, also known as doping. In this study, sulfur-doped ZnO (S-ZnO) nanorod thin films have been synthesized using the seed-mediated hydrothermal method. This method was carried out in two steps, i.e. the seeding of ZnO on FTO substrate and the growing of S-ZnO on ZnO seeds under hydrothermal condition at 90 ℃ for 5 hours. The S-ZnO thin films were synthesized with a variation of the percentage of 0 at.%, 1 at.%, 2.5 at.%, 5 at.%, and 10 at.% S to ZnO. Crystal structure, morphology, elemental composition, and optical properties of the samples were characterizated using X-Ray Diffraction (XRD), Field Emission Electron Scanning Microscopy (FESEM), Energy Dispersive X-Rays (EDX) and UV-Vis Spectroscopy. The XRD pattern shows that pure ZnO and S-ZnO have a hexagonal crystal structure with preferable direction towards the (002) plane. The addition of the sulfur composition showed a shift in the diffraction peak towards a smaller Bragg angle compared to the pure ZnO sample. The XRD pattern is in line with the results of the FESEM. FESEM images show the geometric shape of the S-ZnO is a nanorod and grows toward the c-axis with a hexagonal cross-section. The addition of the S composition gives the nanorod surface an increasingly coarser and tighter. The EDX spectrum with the composition of S-10% has the highest percentage of S atomic which is equal to 3.86%. UV-Vis characterization showed the peak of absorption and optical reflection for all samples successively occurred in the wavelength range of 300-380 nm and 380-800 nm. Energy band gap values decrease with the addition of sulfur composition of 0.01 to 0.04 eV compared to energy gap of pure ZnO ~3.20 eV. The results showed that the modification of ZnO by addition of has potential applications in the field of photocatalysts and perovskite solar cells.




Keywords : Zinc Oxide (ZnO), Impurities, Doping, Sulfur, Seed-Mediated Hydrothermal

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

03 01.120 (0014)

Penerbit

Pekanbaru : Universitas Riau – FMIPA – FISIKA., 2020

Deskripsi Fisik

xvi, 57 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

03 01.120 (0014)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

ELFITRA

Versi lain/terkait

Lampiran Berkas

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