CD Tesis

Pengaruh Doping Titanium (TI) Dan Pelapisan Perak (AG) Terhadap Sifat Fisis Zno Dan Efisiensi Dye Sensitized Solar Cell (DSSC)

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Dye sensitized solar cells (DSSC) is the third generation of solar cell which is convert sunlight energy to electrical energy. DSSC structured like sandwich which is consist of transparent conducting oxide (TCO), semiconductor material (working electrode), dye as sensitizer and catalyst (counter electrode). The semiconductor material was made of a metal oxide nanomaterial that is ZnO. The ZnO can be used as a working electrode for DSSC because it has band gap energy that corresponds to UV light. The efficiency of DSSC based on ZnO is too low, so it needs to be improved. Doping ZnO with titanium metal (Ti) is carried out to improve the physical properties of ZnO, which is ultimately expected to increase the efficiency of DSSC. Titanium has high electrical properties and generates more free electrons. Plasmonic metal coatings such as silver (Ag) can also increase the efficiency of DSSC which acts as a material to inhibit recombination process of excited charge pairs.
This researches are aims to increase the efficiency of DSSC by modifying the ZnO as the working electrode, analyzing the physical properties and determine the efficiency of DSSC based ZnO. ZnO modification was carried out by giving Ti atom and Ag coating. The synthesis method was used seed mediated hydrothermal using.
The synthesis results of ZnO doped Ti and coated with Ag showed the presence of ZnO nanomaterials growing on the FTO. The UV-Vis absorbance spectrum show that the strong absorption occurs in the wavelength range of 325-375 nm. The analysis of sample diffraction pattern from XRD characterization using HighScore software confirmed that ZnO has a hexagonal crystal structure which represents the highest diffraction peak in the crystal plane orientation (002). The FESEM images of the sample shows the morphology of the nanomaterial that is formed is nanorod with hexagonal cross-sections. The EDX results from samples showed the presence of Ag mass 0.15% and Ag atoms 0.05% analysis is used to show the elemental composition contained in the sample. Based on the analysis, it shows that there is an element of Ag as much as 0.15% mass and atom 0.05%. The DSSC that has been fabricated is tested for its performance to determine the efficiency value of DSSC. The highest efficiency of DSSC was obtained from DSSC based on ZnO doped Ti and coated with Ag concentration 1 mM or equal to 1 coating, namely 2.11%.
Key Words : DSSC, ZnO, Ti doped, Ag coated, efficiency

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2010247526

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Fisika., 2023

Deskripsi Fisik

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Bahasa

ISBN/ISSN

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Klasifikasi

2010247526

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

FATAH

Versi lain/terkait

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