Karakterisasi Sifat Optik Nanopartikel ZnO didoping Mn Menggunakan Metode Sol-Gel

Authors

  • Virrisya Virrisya Laboratorium Fisika Material, Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas
  • Astuti Astuti Laboratorium Fisika Material, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.8.4.308-314.2019

Abstract

Karakterisasi sifat optik nanopartikel ZnO didoping Mn menggunakan metode sol-gel telah diteliti. Nanopartikel ZnO disintesis dengan variasi konsentrasi doping Mn sebesar 0%, 5%, 15%, 20%, dan 25%. Nanopartikel ZnO dikarakterisasi dengan X-Ray diffraction untuk diketahui struktur dan ukuran kristalnya. Struktur kristal nanopartikel ZnO yang didapatkan dari penelitian adalah hexagonal wurtzite dengan ukuran kristal untuk masing-masing variasi doping Mn berturut-turut yaitu 26,01 nm; 27,14 nm; 26,01 nm; 15,60 nm; dan 26,01 nm. UV-Vis spectrometry digunakan untuk karakterisasi celah pita energi dari nanopartikel ZnO. Nilai energi gap untuk masing-masing variasi konsentrasi doping­ Mn berturut-turut yaitu 3,03 eV; 2,71 eV; 2,56 eV; 2,5 eV dan 2,5 eV. Berdasarkan hasil penelitian, nilai energi gap nanopartikel ZnO semakin kecil dengan penambahan doping Mn. Karakterisasi sifat photoluminescence nanopartikel ZnO dilakukan dengan spectrometry photoluminescence, didapatkan 5 puncak emisi untuk seluruh variasi doping Mn yaitu dengan panjang gelombang, 349 nm, 361 nm, 395 nm, 423 nm dan 461 nm.

Kata kunci: nanopartikel, ZnO, doping, sol-gel.

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Published

2019-11-26

How to Cite

Virrisya, V., & Astuti, A. (2019). Karakterisasi Sifat Optik Nanopartikel ZnO didoping Mn Menggunakan Metode Sol-Gel. Jurnal Fisika Unand, 8(4), 308–314. https://doi.org/10.25077/jfu.8.4.308-314.2019

Issue

Vol. 8 No. 4 (2019)

Section

Articles

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Copyright (c) 2019 Virrisya Virrisya, Astuti Astuti

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