Karakterisasi Arus dan Tegangan Sensor Okigen dari Bahan TiO2 Didoping dengan SnO2

Authors

  • Harma Dwi Putri Laboratorium Fisika Material, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas
  • Elvaswer Elvaswer Laboratorium Fisika Material, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.7.3.266-272.2018

Abstract

Telah dilakukan karakterisasi arus dan tegangan sensor gas oksigen berbentuk pelet dari bahan semikonduktor TiO2 didoping dengan SnO2. Sensor gas oksigen dibuat dengan konsentrasi doping SnO2 yang berbeda. Proses pembuatan sensor gas oksigen diawali dengan pencampuran bahan, kemudian sampel dikalsinasi pada temperatur 500 ℃ selama 4 jam menggunakan metode reaksi dalam keadaan padat. Sensor gas oksigen diuji pada temperatur ruang untuk mendapatkan karakteristik I-V, menentukan nilai sensitivitas, konduktivitas dan waktu respon dan karakterisasi XRD. Berdasarkan pengukuran karakteristik I-V, sensitivitas tertinggi terdapat pada komposisi bahan 92% mol TiO2+ 8% mol SnO2 yaitu 4,08 pada tegangan 24 volt. Nilai konduktivitas tertinggi terdapat pada komposisi bahan 92% mol TiO2 + 8% mol SnO2 yaitu 2,81 x 10-2/Ωm di lingkungan oksigen, dengan waktu respon 32 sekon dan tegangan 24 volt. Hasil XRD menunjukan ukuran kristal 92% mol TiO2 + 8 % mol SnO2 yaitu 86,53, nm lebih kecil dibandingkan dengan TiO2 tanpa doping yaitu 121,17 nm.

Kata kunci: Sensor gas oksigen, TiO2- SnO2, sensitivitas, konduktivitas, waktu respon.

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Published

2018-07-02

How to Cite

Putri, H. D., & Elvaswer, E. (2018). Karakterisasi Arus dan Tegangan Sensor Okigen dari Bahan TiO2 Didoping dengan SnO2. Jurnal Fisika Unand, 7(3), 266–272. https://doi.org/10.25077/jfu.7.3.266-272.2018

Issue

Vol. 7 No. 3 (2018)

Section

Articles

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Copyright (c) 2018 Harma Dwi Putri, Elvaswer Elvaswer

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