1. Organic Chemistry Research Division Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
2. Advanced Functional Materials (AFM) Laboratory Engineering Physics Department Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
3. Research Center for Nanoscience and Nanotechnology (RCNN) Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia