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Título del libro: 2014 Ieee 40th Photovoltaic Specialist Conference, Pvsc 2014
Título del capítulo: Influence of the preparation conditions in the morphology and photoluminescence of CdS nanowires

Autores UNAM:
GUILLERMO SANTANA RODRIGUEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2014
Palabras clave:

Gold; Gold deposits; Morphology; Nanotubes; Nanowires; Photoluminescence; Scanning electron microscopy; Transmission electron microscopy; Yarn; Catalytic nanoparticle; CdS; CdS nanowires; Different substrates; Growth mechanisms; Preparation conditions; Scanning and transmission electron microscopy; Vapor-liquid-solid; Cadmium sulfide


Resumen:

In this work, CdS nanowires (NWs) were prepared by the vapor-liquid-solid (VLS) method using Au catalytic nanoparticles (NPs) deposited on different substrates. Scanning and transmission electron microscopy techniques (SEM, TEM) allowed observing NWs with different morphologies: long NWs with lengths of several microns, networks and pointed NWs. Nanotubes were also observed when CdS substrates were used. Possible growth mechanisms are considered for each different morphology. NWs also shown very brilliant photo-luminescence (PL), even at RT. PL spectra is studied as a function of temperature to determine their properties and the origin of the different peaks. © 2014 IEEE.


Entidades citadas de la UNAM: