Ex) Article Title, Author, Keywords
New Phys.: Sae Mulli 2021; 71: 11-15
Published online January 29, 2021 https://doi.org/10.3938/NPSM.71.11
Copyright © New Physics: Sae Mulli.
Sung Jun PARK1, Hyun Kyoung YANG1*, Byung Kee MOON2, Minseok KWAK3, Chang Woo KIM4
1Interdisciplinary Graduate Program of Artificial Intelligence on Computer, Electronic and Mechanical Engineering, Pukyong National University, Busan 48547, Korea
Carbon quantum dots were synthesized using the hydrothermal method with fallen leaves as carbon sources. The chemical structure, particle size and morphology, and luminescent characteristics of the prepared carbon quantum dots were investigated. The particle size and morphology of synthesized carbon dots were observed by using TEM (transmission electron microscopy). The ligand and chemical structures of the carbon quantum dots were confirmed by using FT-IR (Fourier transform infrared spectroscopy). The elemental components of the carbon quantum dots were investigated by using XPS (X-ray photoelectron spectroscopy). The photoluminescence spectrum of carbon quantum dots showed strong cyan fluorescence around 493 nm under 400-nm excitation. A UV blocking film for preventing eye and body damage was fabricated by using the prepared carbon quantum dots. Consequently we confirm the applicability of carbon dot films for shielding from UV light.
Keywords: Carbon dots, Hydrothermal method, Film