TY - GEN
T1 - Development and characterization of nanocomposites with gold nanoparticles embedded in the nanostructured silicon substrate
AU - Gayou, V. L.
AU - Orduña Diaz, A.
AU - Delgado Macuil, R.
AU - Rojas López, M.
AU - Andraca-Adame, J. A.
AU - Agarwal, Vivechana
PY - 2012
Y1 - 2012
N2 - In the present work an alternative nanoparticle synthesis technique was developed, where the nanoparticles nucleate and grow inside the pores of the nanostructured porous silicon (NPS). Employing green method for the nanoparticle synthesis, yeast extract is used as a reducing agent. The porous layers were prepared by electrochemical etching of Boron-doped (100) Si substrate (0.01-0.02Ohm·cm). The NPS support was immersed into the reactive colloid for different times, then withdrawn, cleaned and dried. SEM and XRD measurements were carried out to characterize the NPS substrate and the immobilized catalyst nanoparticles. EDX mapping shows a homogeneous deposition of nanoparticles on the porous support. The average particle size, calculated from XRD diffractograms (using the Scherrer's formula), was found between 6 to 10 nm. This method provides a good incorporation and distribution of nanoparticles, also an alternative environment-friendly technique to develop catalytic devices fabricated on silicon substrate with an additional advantage of being integrated with the silicon based microelectronic circuits.
AB - In the present work an alternative nanoparticle synthesis technique was developed, where the nanoparticles nucleate and grow inside the pores of the nanostructured porous silicon (NPS). Employing green method for the nanoparticle synthesis, yeast extract is used as a reducing agent. The porous layers were prepared by electrochemical etching of Boron-doped (100) Si substrate (0.01-0.02Ohm·cm). The NPS support was immersed into the reactive colloid for different times, then withdrawn, cleaned and dried. SEM and XRD measurements were carried out to characterize the NPS substrate and the immobilized catalyst nanoparticles. EDX mapping shows a homogeneous deposition of nanoparticles on the porous support. The average particle size, calculated from XRD diffractograms (using the Scherrer's formula), was found between 6 to 10 nm. This method provides a good incorporation and distribution of nanoparticles, also an alternative environment-friendly technique to develop catalytic devices fabricated on silicon substrate with an additional advantage of being integrated with the silicon based microelectronic circuits.
KW - Au
KW - Biological synthesis (assembly)
KW - Nanostructure
UR - http://www.scopus.com/inward/record.url?scp=84861152006&partnerID=8YFLogxK
U2 - 10.1557/opl.2012.172
DO - 10.1557/opl.2012.172
M3 - Contribución a la conferencia
AN - SCOPUS:84861152006
SN - 9781605113487
T3 - Materials Research Society Symposium Proceedings
SP - 99
EP - 104
BT - Nanostructured Materials and Nanotechnology
T2 - 20th International Materials Research Congress, IMRC 2011
Y2 - 14 August 2011 through 19 August 2011
ER -