TY - JOUR
T1 - Synthesis and Characterization of ZnS Nanoparticles and Effects of Nanoparticle Size on Optical Properties
AU - Aguilar Jauregui, Maria Elena
AU - Balderas López, José Abraham
AU - Martín-Martinez, Eduardo San
N1 - Publisher Copyright:
© 2022 Instituto Politecnico Nacional. All rights reserved.
PY - 2022
Y1 - 2022
N2 - This research presents a methodology for obtaining ZnS nanoparticles (NZnS). Doped with transition metal ions (MnCl2) and use of rare earth EuCl3 to improve their photoluminescence properties. Semiconductor nanoparticles were synthesized using the nanoprecipitation technique. The characterization of the ZnS nanoparticles was carried out using Dynamic Light Scattering (DLS), Powder X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), High-Resolution Transmission Electron Microscopy (HRTEM), and Luminescence Spectroscopy (PL) technique. A cubic zinc crystalline structure could be observed considering the position and intensity of the characteristic peaks in the XRD pattern. Also, taking the width at half height of the main peak and using the Debye-Scherrer equation, it is possible to obtain the average size of the nanoparticles, which for the samples analyzed was between 2-4 nm. SEM micrograph revealed a morphology with aggregated nanoparticles. High-Resolution Transmission Electron Microscopy showed the crystalline structure of the doped nanomaterial. PL characterization showed an increase in the luminescent intensity of doped NZnS compared to NZnS doped with the lowest concentration of the coating agent. These results confirm the effectiveness of the methodology for possible application in bioimaging diagnosis of PL in nanomedicine.
AB - This research presents a methodology for obtaining ZnS nanoparticles (NZnS). Doped with transition metal ions (MnCl2) and use of rare earth EuCl3 to improve their photoluminescence properties. Semiconductor nanoparticles were synthesized using the nanoprecipitation technique. The characterization of the ZnS nanoparticles was carried out using Dynamic Light Scattering (DLS), Powder X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), High-Resolution Transmission Electron Microscopy (HRTEM), and Luminescence Spectroscopy (PL) technique. A cubic zinc crystalline structure could be observed considering the position and intensity of the characteristic peaks in the XRD pattern. Also, taking the width at half height of the main peak and using the Debye-Scherrer equation, it is possible to obtain the average size of the nanoparticles, which for the samples analyzed was between 2-4 nm. SEM micrograph revealed a morphology with aggregated nanoparticles. High-Resolution Transmission Electron Microscopy showed the crystalline structure of the doped nanomaterial. PL characterization showed an increase in the luminescent intensity of doped NZnS compared to NZnS doped with the lowest concentration of the coating agent. These results confirm the effectiveness of the methodology for possible application in bioimaging diagnosis of PL in nanomedicine.
KW - Nanomaterials
KW - lanthanide ions
KW - luminescence
KW - nanoparticles
KW - passivation agent
KW - quantum dots
KW - transition metal
UR - http://www.scopus.com/inward/record.url?scp=85135764776&partnerID=8YFLogxK
U2 - 10.13053/CyS-26-2-4292
DO - 10.13053/CyS-26-2-4292
M3 - Artículo
AN - SCOPUS:85135764776
SN - 1405-5546
VL - 26
SP - 1081
EP - 1088
JO - Computacion y Sistemas
JF - Computacion y Sistemas
IS - 2
ER -