Abstracts Book - IMRC 2018

• SA2-O006 Invited Talk
BIMETALLIC NANOPARTICLES AND THIN FILMS BY PULSED LASER
ABLATION IN LIQUID (PLAL)
Sadasivan Shaji 1 , David Avellaneda 1 , Selene Sepulveda 1 , Bindu Krishnan 1 , Jacob Johny 1 , Joseph
Alejandro Cruz Turcios 1 , Sreed Sharma 1
1
Universidad Autónoma de Nuevo León, Facultad de Ingenieria Mecanica y Electrica, Mexico.
Alloy nanoparticles possess a combination of multiple interesting properties,
which are attractive for technological and scientific purposes. A challenge in this
field is the synthesis of nanoalloys with compositions that are
thermodynamically not allowed at ordinary temperature and pressure. Pulsed
Laser ablation in liquid (PLAL) is a green synthesis technique for nanoparticles
of metals, metal oxides, semiconductors and ceramics. PLAL was also successful
in synthesis of multi-element nanoparticles (NPs) such as metal alloys. Here, we
present synthesis and properties of bimetallic nanoparticles (Ag-Au and Ag-Ti)
by pulsed laser ablation in liquid (PLAL) technique in different liquid media.
Ablation experiments were done using 532 nm a 10 nanosecond pulsed Nd:YAG
laser. The structure, morphology and composition of bimetallic nanoparticles
obtained by PLAL were analyzed using different characterization techniques.
From these nanocolloids, thin films of bimetallic nanoparticles on different
substrates were obtained using electrophoretic deposition. The results on
morphology, composition and chemical analysis of these thin films are included.
The results show that combination of PLAL and electrophoretic deposition is a
viable technique for bimetallic nanoparticle coatings.
Keywords: alloy nanoparticles, laser ablation in liquid, thin films
Presenting authors email: sshajis@yahoo.com