Sintesis Nanopartikel Y2O3:Eu Berintensitas Tinggi Didop Ion Litium dengan Menggunakan Metode Pemanasan Dalam Larutan Polimer
DOI:
https://doi.org/10.25077/jif.1.2.13-17.2009Abstract
Yttrium Nitrat Hexahidrat (Y(NO3)3.6H2O) yang di doping dengan Europium Nitrat Hexahidrat (Eu(NO3)3.6H2O) merupakan salah satu material yang menghasilkan luminesens berwarna merah yang stabil. Sintesis nanopartikel ini telah dilakukan dengan menggunakan metoda pemanasan sederhana dalam larutan polimer (Polietilen Glikol (PEG)) pada temperatur 1000C, dan konsentrasi doping 4% mol/mol. Pada jurnal ini juga akan dilaporkan pembuatan nanopartikel Y2O3:Eu dengan intensitas yang sangat tinggi. Intensitas yang sangat tinggi ini disintesis dengan cara menambahkan ion Litium, dalam penelitian ini digunakan LiOH. Hasil Photoluminescence menunjukkan intensitas maksimum pada panjang gelombang 612 nm, dengan menggunakan panjang gelombang 250 nm. Irradiasi nanokristal Y2O3:Eu dengan sinar Ultra Violet (UV) akan menghasilkan emisi warna merah yang didominasi oleh transisi 5D0 ke 7F2. Nanopartikel Y2O3:Eu ini menunjukkan intensitas yang sangat tinggi dibandingkan dengan yang disintesis tanpa penambahan ion Litium. Ukuran kristal Y2O3:Eu berkisar dari 40-70 nm. Dari hasil yang diperoleh nanopartikel ini dapat diaplikasikan sebagai tinta luminesens
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