STUDI PENDAHULUAN PEMBUATAN LAPISAN TIPIS MWCNT-Fe PADA PERMUKAAN GELAS DENGAN SPIN COATING
DOI:
https://doi.org/10.17146/jsmi.2015.17.1.4196Keywords:
Lapisan tipis, XRD, Spin Coating, Konduktansi, Kapasitansi, Spektrum RamanAbstract
STUDI PENDAHULUAN PEMBUATAN LAPISAN TIPIS MWCNT-Fe PADA PERMUKAAN GELAS DENGAN SPIN COATING. Telah dilakukan pembuatan lapisan tipis Multi-Walled Carbon Nanotubes (MWCNT)-Fe pada permukaan gelas. Pengukuran struktur kristal campuran serbuk MWCNT-Fe dilakukan dengan XRD, dimana pola difraksi yang nampak menunjukkan adanya puncak dari carbon dan Fe saja, tidak ditemukan unsur pengotor lainnya. Pengamatan morfologi dengan menggunakan SEM menunjukkan permukaan lapisan tipis MWCNT-Fe yang terbentuk pada permukaan substrat gelas. Pengukuran sifat listrik pada lapisan tipis MWCNT-Fe selanjutnya dilakukan untuk mengetahui efek perubahan frekuensi ukur terhadap nilai konduktansi dan kapasitansi. Secara umum nilai konduktansi relatif stabil terhadap perubahan frekuensi, sedangkan nilai kapasitansi lapisan tipis MWCNT-Fe mengalami penurunan seiring dengan naiknya frekuensi ukur. Namun seiring dengan bertambahnya persen (%) berat Fe di dalam lapisan tipis, nilai konduktansi lapisan tipis naik drastis, dan sebaliknya nilai kapasitansi mengalami penurunan drastis seiring dengan naiknya frekuensi pengukuran. Dari spektrum Raman terlihat adanya puncak D band pada posisi 1310 cm-1 hingga 1320 cm-1, puncak harmonik pertama G band (tangensial G band) pada posisi 1580 cm-1 hingga 1595 cm-1, dan puncak harmonik kedua G band (G’ band) pada posisi 1605 cm-1 hingga 1615 cm-1.
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