Efek Doping Senyawa Alkali Terhadap Celah Pita Energi Nanopartikel ZnO

Authors

  • Ira Olimpiani Jurusan Fisika FMIPA Universitas Andalas
  • Astuti Astuti Jurusan Fisika FMIPA Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.5.2.115-121.2016

Abstract

Penelitian tentang efek doping senyawa alkali terhadap celah pita energi nanopartikel ZnO telah dilakukan. Sintesis nanopartikel ZnO dilakukan dengan metode sol-gel dengan doping senyawa alkali yaitu Li2CO3, Na2CO3 dan K2CO3. Hasil sintesis dikarakterisasi dengan X-Ray Diffraction untuk mengetahui struktur dan ukuran kristal, UV-Vis Spectrometry untuk menentukan celah pita energi dan Scanning Electron Microscope untuk mengetahui morfologi. Struktur kristal yang terbentuk dari ZnO yang di-doping adalah hexagonal zincite. Ukuran kristal yang didapatkan dari ZnO tanpa doping adalah 84,31 dan ZnO yang di-doping senyawa alkali yaitu 37,76 nm; 26,57 nm dan 52,78 nm. ZnO yang didoping senyawa alkali memiliki nilai celah pita energi dengan nilai yang lebih kecil yaitu 3,46 eV; 3,54 eV; dan 3,46 eV. ZnO tanpa doping terlihat memiliki jumlah butiran partikel yang sedikit dan menggumpal, sedangkan ZnO yang di-doping dengan logam alkali memperlihatkan ukuran partikel yang tidak seragam dan bentuk partikel yang menggumpal.

Kata kunci: celah pita energi, doping, senyawa alkali, ZnO

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Published

2016-04-01

How to Cite

Olimpiani, I., & Astuti, A. (2016). Efek Doping Senyawa Alkali Terhadap Celah Pita Energi Nanopartikel ZnO. Jurnal Fisika Unand, 5(2), 115–121. https://doi.org/10.25077/jfu.5.2.115-121.2016

Issue

Vol. 5 No. 2 (2016)

Section

Articles

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Copyright (c) 2016 Ira Olimpiani, Astuti Astuti

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