Abstracts Book - IMRC 2018

• SC4-P006
FABRICATION OF A HYBRID MATERIAL USING PbS
NANOPARTICLES AND RGO FOR SOLAR CELL APPLICATIONS
Alan Ricardo Lara Canche 1,2 , Domingo Ixcoatl Garcia Gutierrez 1,2 , Diana Fabiola García
Gutiérrez 1,2 , Selene Sepulveda 1,2
1
Universidad Autónoma de Nuevo León, Centro de Innovacion, Investigacion y Desarrollo en
Ingenieria y Tecnologia CIIDIT, Mexico. 2 Universidad Autónoma de Nuevo León, Facultad de
Ingenieria Mecanica y Electrica, Mexico.
In the current work, a hybrid material based on PbS nanoparticles and reduced
Graphene Oxide (rGO), fabricated with dip coating technique is presented,
where Graphene Oxide (GO) interlayers were intercalated with PbS
nanoparticles layers. Afterwards, the graphene oxide was reduced using
thermal and chemical methods. The chemical reduction improved the electrical
properties by reducing the resistance of the hybrid material 1.21 e 11 Ω down
to 4.12e 3 Ω; the reduced hybrid material’s photoresponse suggest
spontaneous charge transfer PbS nanoparticles to rGO. The thermal reduction
showed improved results for a reduction temperature of 400°C, where
improved electrical performance and photoresponse were observed. Scanning
electron microscopy (SEM) results showed the effect of the reduction
procedures on the morphology of the hybrid thin films fabricated; while UV-Vis-
NIR optical absorbance studies showed the transmittance of the different hybrid
thin films fabricated. Using Raman and XPS spectroscopy it was possible to
determinate the degree of reduction for the graphene oxide. These results show
that a hybrid material based on rGO-PbS nanoparticles with a configuration of
intercalated layers has a great potential in photovoltaic applications, due to the
fact that the photoresponse and the conductivity of such hybrid material can be
tuned based on the fabrication parameters.
Acknowledgment:
This project was supported by the UANL, CONACyT and the CIDIIT UANL.
Keywords: reduced graphene oxide, PbS nanoparticles, hybrid material
Presenting authors email: a.laracanche@gmail.com