Synthesis and characterization of silica–lead sulfide core–shell nanospheres for applications in optoelectronic devices

  title={Synthesis and characterization of silica–lead sulfide core–shell nanospheres for applications in optoelectronic devices},
  author={A. K. Romero-Jaime and M. C. Acosta-Enr{\'i}quez and Diana Vargas-Hern{\'a}ndez and Judith Tanori-Cordova and H. A. Pineda Le{\'o}n and S. Jes{\'u}s Castillo},
  journal={Journal of Materials Science: Materials in Electronics},
  pages={21425 - 21431}
Nanoscale miniaturization of chalcogenide semiconductors such as lead sulfide (galena) can generate interesting quantum confinement effects in the field of optoelectronic applications. In this work, we developed a process in order to obtain SiO2 nanospheres coated with Galena, as the denominated core–shell system; this process is based on Stöber’s method, where the magnetic stirring was replaced by an ultrasonic bath to achieve well rounded and highly stable silica nanoparticles with diameters… 


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Sonochemical synthesis of hollow PbS nanospheres.
  • S. Wang, F. Gu, M. Lü
  • Materials Science
    Langmuir : the ACS journal of surfaces and colloids
  • 2006
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