Abstracts Book - IMRC 2018

• SB4-P018
NiS NANOPARTICLES BY SOFT CHEMISTRY AS SEMICONDUCTOR
IN ELECTRONIC DEVICES
Ruben Guzman Saucedo 1 , Maria de la Luz Mota Gonzalez 2 , Amanda Carrillo Castillo 1
1 Universidad Autónoma de Ciudad Juárez, Departamento de Ingeniería Eléctrica y
Computación, Instituto de Ingeniería y Tecnología, Mexico. 2 Consejo Nacional de Ciencia y
Tecnologia - CONACYT, Departamento de Ingeniería Eléctrica y Computación, Instituto de
Ingeniería y Tecnología, Mexico.
In this research, the synthesis and characterization of nickel sulphide (NiS)
nanoparticles (Nps) in solution obtained by the sol-gel process is reported, using
different concentrations of glycine as surfactant. The solutions were
characterized according to their aging time and classified into new and aged
(one month). From the characterization it was possible to define the best
synthesis parameters, the thermal stability as well as the distribution of
nanoparticle size and morphology. The Nps exhibit spherical shape with sizes
60 to 130 nm as observed by SEM. The crystalline structure determined for the
synthesized nanoparticles was cubed with a crystal size between 32-100 nm
depending on the criteria comprising the glycine and the aging times. The Nps
in solution were also electrically characterized by conductometry
measurements where the values obtained are between 431 and 765 uS, as the
concentration of glycine increases the conductivity decreases. Films were
developed based on the solutions containing the Nps, determining that the
band gap of the NiS was reduced when the nanoparticles were deposited by
casting (1.7 eV). The functionality and applicability of the synthesis and
processing reported here offers an alternative in the development of
semiconductor materials.
Acknowledgment:
To research proyects CB-2013-01 221117 and PN 2016 3529.
Keywords: Nanoparticles, NiS, soft chemistry
Presenting authors email: ruben_gs22@hotmail.com