1. Graduated School, Institut Teknologi,Nanotechnology Study Program,Bandung,Indonesia
2. National Research and Innovation Agency Republic of Indonesia,Research Center for Electronics,Bandung,Indonesia
3. National Research and Innovation Agency Republic of Indonesia,Research Center for Advanced Materials,Serpong,Indonesia
4. Bandung Institute of Technology,Research Center for Nanoscience and Nanotechnology (RCNN),Bandung,Indonesia