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Plasma Synthesis of Highly Monodisperse Ge Nanocrystals and Self-Assembly of Dense Nanocrystal Layers

Published online by Cambridge University Press:  26 February 2011

Ryan Gresback ,
Zak Holman  and
Uwe Kortshagen
Ryan Gresback
Affiliation:
ryang@me.umn.edu, University of Minnesota, Mechanical Engineering, 111 Church Street SE, Minneapolis, MN, 55455, United States
Zak Holman
Affiliation:
holma069@umn.edu, University of Minnesota, Mechanical Engineering, 111 Church Street SE, Minneapolis, MN, 55455, United States
Uwe Kortshagen
Affiliation:
uk@me.umn.edu, University of Minnesota, Mechanical Engineering, 111 Church Street SE, Minneapolis, MN, 55455, United States
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Abstract

Germanium nanocrystals have been synthesized using a low-pressure, nonthermal plasma approach. The nanocrystal size can be adjusted between 4-20 nm by varying the plasma parame-ters, and the size distribution is relatively narrow with standard deviations of 10-20% of the av-erage crystal size. Stable colloidal solutions of the germanium crystals have been prepared by grafting organic alkene ligands onto the nanocrystal surfaces. When drop-cast from solution onto TEM grids, the nanocrystals form densely packed films.

Keywords

Genanoscalephotovoltaic

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 974: Symposium CC – Solar Energy Conversion , 2006 , 0974-CC05-08
Copyright
Copyright © Materials Research Society 2007

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References

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