W.S.B. Dwandaru, A.L. Fadli, E.K. Sari, Isnaeni
This research aims to synthesis carbon-dots (Cdots) and carbon dots/sulphur (Cdots/S) from nam-nam fruit via oil based frying method and to characterize the samples using UV-Vis spectroscopy, PL, XRD, and TRPL. The UV-Vis result upon the Cdots sample shows absorbance peaks at 242 nm and 268 nm, whereas Cdots/S sample shows absorbance peaks at 228 nm and 268 nm. The PL characterization shows green luminescence with peak intensities at 497.87 nm and 498.79 nm for Cdots and Cdot/S, respectively. TRPL results show the electrons decay lifetime duration of Cdots and Cdots/S, i.e.: 2.46 ns and 1.71 ns, respectively. © 2020, S.C. Virtual Company of Phisics S.R.L. All rights reserved.
Physics Education Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Jl. Colombo No 1, Yogyakarta, 55281, Indonesia; Research Center for Physics, Indonesian Institute of Science, Building 442, Puspitek Serpong, South Tangerang, 15314, Banten, Indonesia
