Optical Properties of Sodium-doped Carbon Dots Made of Urea and Trisodium Citrate

Penulis

  • Isnaeni Isnaeni Research Center for Photonics, National Research and Innovation Agency
  • Vivi Purwandari Department of Chemistry, Faculty of Science and Information Technology, Sari Mutiara University
  • Permono Adi Putro Department of Physics, Faculty of Science, Universitas Mandiri
  • Hammam Magma Adiwidya Department of Chemistry, Bogor Agricultural University

DOI:

https://doi.org/10.11594/timeinphys.2023.v1i1p1-9

Kata Kunci:

Carbon dots, Sodium, Microwave, Optical properties, Quantum Yield

Abstrak

Carbon dots are very interesting carbon-based nanoparticles. Carbon dots have unique optical properties, especially luminescence properties upon light excitation. Improving optical quality is the challenge in carbon dots research. Doping is one of the methods to improve the quality of carbon dots. In this work, we used sodium, which is an active ion, as doping in the carbon dots. We studied the optical properties of sodium-doped carbon dots. We found that absorbance, FTIR, and photoluminescence spectra changed due additional surface energy level of carbon dots. Furthermore, the quantum yield of carbon dots improved significantly due to sodium doping. In addition, the phosphorescence of sodium-doped carbon dots was slightly longer. Electron behavior was also changed. In conclusion, sodium-doped carbon dots showed very good optical properties for further applications.

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Diterbitkan

2023-02-26

Cara Mengutip

Isnaeni, I., Purwandari, V., Putro, P. A., & Adiwidya, H. M. (2023). Optical Properties of Sodium-doped Carbon Dots Made of Urea and Trisodium Citrate. TIME in Physics, 1(1), 1–9. https://doi.org/10.11594/timeinphys.2023.v1i1p1-9

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