1. Magister of Nanotechnology, Graduate School, Institut Teknologi Bandung, Jalan Ganesha No. 10, 40132 Bandung, West Java, Indonesia
2. Advanced Functional Materials Research Group, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesha No. 10, 40132 Bandung, West Java, Indonesia
3. Research Center for Nanosciences and Nanotechnology, Gd. Center for Advance Sciences, Institut Teknologi Bandung, Jalan Ganesha No. 10, 40132 Bandung, West Java, Indonesia
4. Nuclear Physics and Biophysics Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha No. 10, 40132 Bandung, West Java, Indonesia