Laporan Penelitian_Analisis Teori Pengaruh Ukuran Butir Terhadap Celah Pita Energi dan Spektrum Fotoluminesensi Elektron Hole Di Dalam Nanopartikel Titanium Dioksida (TiO2) Dengan Menggunakan Metode Elemen Hingga

Arsyad, Fitri Suryani and Supardi, Supardi and Johan, Akmal (2014) Laporan Penelitian_Analisis Teori Pengaruh Ukuran Butir Terhadap Celah Pita Energi dan Spektrum Fotoluminesensi Elektron Hole Di Dalam Nanopartikel Titanium Dioksida (TiO2) Dengan Menggunakan Metode Elemen Hingga. Project Report. Lembaga Penelitian dan Pengabdian pada Masyarakat Universitas Sriwijaya.

Text (Laporan Penelitian_Analisis Teori Pengaruh Ukuran Butir Terhadap Celah Pita Energi dan Spektrum Fotoluminesensi Elektron Hole Di Dalam Nanopartikel Titanium Dioksida (TiO2) Dengan Menggunakan Metode Elemen Hingga) Laporan Penelitian 2014 (FSA).pdf - Other Download (1MB)

Abstract

MTitanium dioxide (TiO2) material is a semiconductor material that is widely used in various commercial products such as pigments, sunscreens, paints, ointments, toothpastes. Even the development of TiO2 material research in the field of nanoscience and nanotechnology also shows rapid development because of the benefits of superior chemical and physical properties when the shape and size of the grains are in nanodimensions. Currently, the application of TiO2 nanomaterials in photovoltaics and photocatalysis devices has provided great breakthroughs and hope in helping alleviate the energy crisis and water treatment through the use of solar energy. One of the advantages that arise when the grain size of TiO2 material shrinks is the increased mechanism of light absorption that produces electron transition between bands and the emission of light produced by the electron-hole recombination process. In addition to being influenced by the size of the grains, the amount of absorption and emission of light is also influenced by homogeneity or fluctuations in size and shape and density distribution. In this study, we tried to reveal analytically the influence of fluctuations in the shape and grain size of TiO2 nanomaterials on their optical properties. The first step is to perform numerical simulations of the shape and grain size of TiO2 nanomaterials to calculate the magnitude of the electron-hole optical transition energy produced. Furthermore, the amount of absorption and emission of light produced will be calculated based on its optical transition energy using numerical simulations through the Gaussian size distribution function approach and the finite element method. The results of this numerical analysis will then be compared with the results of measurements made experimentally. These numerically conducted analytical expressions would be useful for describing electron-hole energy levels and their behavior in the mechanisms of light absorption and emission in TiO2 nanomaterials

Item Type:	Monograph (Project Report)
Subjects:	#3 Repository of Lecturer Academic Credit Systems (TPAK) > Research Grant/Fund
Divisions:	08-Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User:	Akmal Johan
Date Deposited:	14 Jun 2023 07:13
Last Modified:	14 Jun 2023 07:13
URI:	http://repository.unsri.ac.id/id/eprint/109770

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