Abstract
In this work, ZnO (Zinc Oxide) rods, which is a sensitive material for gas detection, are grown on a microcantilever surface by hydrothermal technique. Synthesis of ZnO rods consists of two processes, i.e., a formation of seed layer using Zinc Acetate Dihydrate by a dip-coating and a growth of the ZnO rods using Zinc-Nitrate-Tetrahydrate at a temperature 95°C for time variations of 2 hours, 4 hours and 6 hours. Drying condition for both seed layer and growth of ZnO rods was done at a temperature of 120 oC for 2 hours. The ZnO rods were then characterized by Fourier Transform Infrared (FTIR) in order to investigate the formation of Zn-O bond. The characterization results indicate that the metal oxide correlation is shown in the wavenumber spectrum of 540 cm-1 for a sample with 2-hour growth time, while the wavenumber spectrum of 548 cm-1 and 547 cm-1 for the growth time of ZnO rods for 4 hours and 6 hours. Wavenumber spectrum approximately at 540-548 cm-1 is predicted to be the absorption of the formation of a Zn-O bond.
 Keyword: Microcantilever, ZnO rods, dip-coating, hydrothermal, growth time dependent.
Highlights
Untuk dapat mendeteksi suatu objek tertentu, mikrokantilever membutuhkan lapisan fungsional pada permukaannya
ZnO (Zinc Oxide) rods, which is a sensitive material for gas detection, are grown on a microcantilever surface by hydrothermal technique
Synthesis of ZnO rods consists of two processes, i.e., a formation of seed layer using Zinc Acetate Dihydrate by a dip-coating and a growth of the ZnO rods using Zinc-Nitrate-Tetrahydrate at a temperature 95°C for time variations of 2 hours, 4 hours and 6 hours
Summary
Mia Yuliana Frestika1,2,a), Rina Dewi Mayasari2,b), Masmui2,c), Agustanhakri2,d), R. Batang ZnO (Zinc Oxide rods) yang merupakan material pendeteksi objek gas ditumbuhkan di atas permukaan mikrokantilever dengan teknik hidrotermal. Sintesis ZnO rods ini meliputi dua proses, yaitu proses pelapisan lapisan benih (seed layer) menggunakan Zinc Asetate Dihydrate dengan metode dip-coating dan proses penumbuhan ZnO rods menggunakan Zinc Nitrate Tetrahydrate pada suhu 95 °C dengan variasi waktu 2 jam, 4 jam dan 6 jam. Kondisi pengeringan baik untuk lapisan benih dan penumbuhan ZnO rods dilakukan pada suhu 120 °C selama 2 jam. ZnO rods dikarakterisasi dengan teknik Fourier Transform Infrared (FTIR) untuk mengetahui pembentukan ikatan Zn-O. Hasil karakterisasi memperlihatkan bahwa korelasi logam oksida (metal oxide) ditunjukkan pada spektrum bilangan gelombang 540 cm-1 untuk waktu penumbuhan 2 jam, sementara ditunjukkan pada spektrum gelombang masing-masing 548 cm-1 dan 547 cm-1 untuk waktu penumbuhan ZnO rods 4 jam dan 6 jam. Kata-kata kunci: Mikrokantilever, ZnO rods, dip-coating, hidrotermal, waktu penumbuhan
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