Germanium nanoparticles for solar energy conversion

Elayaraja Muthuswamy, Susan M. Kauzlarich

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Photovoltaic cells made from all-inorganic nanocrystals offer advantages in terms of stability over polymer-based solar cells. Multiple Exciton Generation (MEG) pathway is currently explored in quantum confined semiconducting nanoparticles to increase the efficiency of solar cells. Colloidal preparations of semiconducting nanoparticles are the preferred method for device fabrication. However, the colloidal synthesis of Si and Ge are not well established as the metal chalcogenide systems. Reported methods in literature for Ge nanoparticles do not offer much control on size and morphology. In addition many of these methods provide low yields. In this work, germanium nanoparticles have been synthesized by the reaction of germanium iodide with hexamethyldisilazane in a mixture of oleylamine and oleic acid under Ar at ≥300°C. Reaction conditions have been optimized to prepare monodisperse nanoparticles in high yields. Ge nanoparticles of different sizes will be prepared and the size effect will eventually be tested on the photovoltaic properties.

Original languageEnglish (US)
Title of host publicationACS National Meeting Book of Abstracts
StatePublished - 2011
Event242nd ACS National Meeting and Exposition - Denver, CO, United States
Duration: Aug 28 2011Sep 1 2011


Other242nd ACS National Meeting and Exposition
Country/TerritoryUnited States
CityDenver, CO

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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