Dewi, Kariana Kusuma (2019) Sintesis dan Karakterisasi Ce-Doped ZnO Nanorods Berbasis Metode Hydrothermal untuk Aplikasi Sensor Gas CO. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perkembangan sensor sudah merambah ke tingkat material nano terutama untuk sensor gas CO dengan memanfaatkan berbagai macam material semikonduktor, salah satunya adalah ZnO nanorods yang didoping dengan unsur lain misalnya Ce untuk meningkatkan performansi sehingga memunculkan permasalahan mengenai rasio Ce-Zn yang tepat. Penelitian ini mengembangkan material untuk aplikasi sensor gas CO. Sintesis material sensor ZnO nanorods dilakukan dengan variasi doping cerium yang ditumbuhkan pada substrat interdigitated electrode arrays menggunakan metode penumbuhan secara hidrotermal. Morfologi ZnO nanorods akan berpengaruh pada sifat listrik dan sensitivitas sensor terhadap penginderaan gas CO. Hasil karakterisasi penelitian ini menunjukkan bahwa kristalinitas paling tinggi terjadi pada sampel dengan doping cerium 3% dan penambahan konsentrasi doping Ce mengecilkan ukuran rods. Karakterisasi I-V dilakukan pada temperatur dengan variasi dari 150°C sampai 250°C menunjukkan hasil bahwa peningkatan temperatur menyebabkan nilai arus semakin kecil. Karakteristik yang lain terhadap sampel menunjukkan bahwa nilai sensitivitas yang paling besar terjadi pada tegangan 8 Volt yaitu untuk sampel Ce 4% sebesar 1,60.
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The development of sensors has penetrated to the level of
nano materials, especially for CO gas sensors by utilizing various
kinds of semiconductor materials, one of which is ZnO nanorods
doped with other elements such as Ce to improve performance so
as to raise problems regarding the right Ce-Zn ratio. This research
develops material for the application of CO gas sensors. The
synthesis of ZnO nanorods sensor material was carried out with
variations in cerium doping grown on interdigitated electrode
arrays using hydrothermal growth methods. The morphology of
ZnO nanorods will affect the electrical properties and sensitivity of
the sensor to CO gas sensing. The results of the characterization
of this study indicate that the highest crystallinity occurred in
samples with 3% cerium doping and the addition of Ce doping
concentrations played down the size of the rods. Characterization
of I-V carried out at temperatures with variations from 150 ° C to
250 ° C shows that increasing temperature causes smaller current
values. Other characteristics of the sample indicate that the
greatest sensitivity value occurs at 8 Volt, for Ce 4% samples of
1.60.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSF 620.189 34 Dew s-1 2019 |
| Uncontrolled Keywords: | doping cerium, kurva I-V, sensitivitas, ZnO nanorods |
| Subjects: | Q Science > QC Physics Q Science > QC Physics > QC610.3 Electric conductivity T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Kariana Kusuma Dewi |
| Date Deposited: | 04 Apr 2022 02:46 |
| Last Modified: | 04 Apr 2022 02:46 |
| URI: | http://repository.its.ac.id/id/eprint/62236 |
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