THE EFFECT OF GRAPHITE OXIDE ADDITION TOWARD PHOTOLUMINESCENCE PROPERTIES OF CARBON NANODOTS PREPARED BY MICROWAVE METHOD

• Main Author: HANDARI JATI (NIM : 10213038), PRASIWI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/29967
• Institution: Institut Teknologi Bandung

<p align="justify">Carbon nanodots (CND) luminescence material is a new material of carbon family which can be applied to several field due to its good luminescence, non toxic and good compatibility. In this research, we have succed synthesize CND material through micro wave heating treatment. The precussors that used are citric acid as carbon source, urea as nitrogen source and graphite oxide. The graphite oxide adding is done to CND sample due to graphite oxide has the similar composition with citric acid but in different fraction. Citrit acid and urea mass composition in CND sample is made constant 0.035 gram dan 3 gram. In this research, it has done several parameter variation that is graphite oxide mass variation. CND sample is characterized using FTIR, XRD, SEM, PL and PLE spectrometer, and UV Vis spectrometer. FTI result of CND sample shows that is a change of carbonil bond structure (C=O). XRD result shows that graphite oxide is contained in CND sample. Other than that, SEM result shows that structure or morphology of every sample is indistinguishable. Sample emission spectrum is made from PL spectrometer which has emission peak at 507 nm and excitation peak at 365 nm. Meanwhile, UV-Vis characterization result shows absorbance characteristic of sample. Based on that characterization which have done, therefore can be proposed CND photoluminescence mechanism caused by carbonil group.<p align="justify">