TY - JOUR
T1 - In-situ pulsed laser induced growth of CdS nanoparticles on ZnO nanorods surfaces
AU - Rodríguez-Martínez, Y.
AU - Alba-Cabañas, J.
AU - Cruzata, O.
AU - Bianco, S.
AU - Tresso, E.
AU - Rossi, F.
AU - Vaillant-Roca, L.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/5
Y1 - 2020/5
N2 - Herein we present a process for the in-situ growth of CdS nanoparticles using a pulsed laser irradiation. A Nd-YAG laser was applied to ZnO nanorods previously submerged in an aqueous precursor solution containing cadmium chloride and thiourea. For optimum values of the laser fluence, around 40 mJ/cm2 it was possible to fabricate a highly homogeneous film of CdS nanoparticles covering the ZnO nanorods surface. Cathodoluminescence measurements of the ZnO/CdS structure show the quenching of the ZnO yellow and green luminescence, indicating the ZnO surface defects passivation by CdS nanostructures. Although lasers have been already used for inducing growth in solution, this work presents new evidence of in-situ growth on the surface of nanostructured materials. The laser based technique presented is simple, easy to implement, scalable and it could be applied in the fabrication of nanostructured solar cells and other devices.
AB - Herein we present a process for the in-situ growth of CdS nanoparticles using a pulsed laser irradiation. A Nd-YAG laser was applied to ZnO nanorods previously submerged in an aqueous precursor solution containing cadmium chloride and thiourea. For optimum values of the laser fluence, around 40 mJ/cm2 it was possible to fabricate a highly homogeneous film of CdS nanoparticles covering the ZnO nanorods surface. Cathodoluminescence measurements of the ZnO/CdS structure show the quenching of the ZnO yellow and green luminescence, indicating the ZnO surface defects passivation by CdS nanostructures. Although lasers have been already used for inducing growth in solution, this work presents new evidence of in-situ growth on the surface of nanostructured materials. The laser based technique presented is simple, easy to implement, scalable and it could be applied in the fabrication of nanostructured solar cells and other devices.
KW - A. Inorganic compounds
KW - A. Nanostructures
KW - B. Chemical synthesis
KW - C. Electron microscopy
KW - D. Defects
UR - https://www.scopus.com/pages/publications/85078949485
U2 - 10.1016/j.materresbull.2020.110790
DO - 10.1016/j.materresbull.2020.110790
M3 - Article
AN - SCOPUS:85078949485
SN - 0025-5408
VL - 125
JO - Materials Research Bulletin
JF - Materials Research Bulletin
M1 - 110790
ER -
