Pengaruh Jenis Larutan Terhadap Morfologi dan Energi Gap Lapisan TiO2 yang Dideposisi dengan Metode Spincoating

Authors

  • Nurfaisal Anuar Jurusan Fisika, FMIPA, Universitas Andalas
  • Dahlan Dahyunir Jurusan Fisika, FMIPA, Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.5.3.228-232.2016

Abstract

Telah dilakukan deposisi lapisan TiO2 dari berbagai jenis larutan. Larutan yang dihasilkan kemudian dideposisikan dengan menggunakan spincoater selama 30 detik. Lapisan yang terbentuk pada substrat kaca preparat diberi perlakuan panas pada suhu ruang (27 oC) dan suhu 400 oC untuk melihat pengaruh temperatur pada masing-masing sampel. Hasil karakterisasi mikroskop optik dan SEM menunjukkan bahwa morfologi lapisan TiO2 dengan penambahan PEG-6000 terlihat partikelnya tersebar merata serta permukaan lapisan yang halus. Penambahan CTAB menyebabkan lapisan tidak terdeposisi secara merata. Aquabides (H2O) menyebabkan larutan TiO2 lebih homogen. Etanol (C2H5OH) menyebabkan penyebaran partikel pada lapisan TiO2 lebih merata (homogen). Asam asetat (CH3COOH) menyebabkan lapisan TiO2 terlapisi pada substrat kaca preparat. Asam nitrat (HNO3) menyebabkan lapisan TiO2 tidak terlapisi pada substrat kaca preparat. Berdasarkan hasil karakterisasi UV-Vis, energi gap TiO2 dengan variasi larutan H2O, C2H5OH, CH3COOH, dan C2H5OH penambahan PEG-6000 berturut-turut dengan suhu ruang (27 oC) adalah 3,2 eV, 3,25 eV, 3,0 eV dan 3,6 eV. Sedangkan energi gap ketika diberi suhu 400 oC berturut-turut adalah 3,1 eV, 3,6 eV, 3,6 eV, dan 3,65 eV.

Kata kunci : TiO2, metode spincoating dan energi gap

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Published

2016-07-03

Issue

Vol. 5 No. 3 (2016)

Section

Articles

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Copyright (c) 2016 Nurfaisal Anuar, Dahlan Dahyunir

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