DocumentCode
3204421
Title
Direct-bandgap emission from hydrostatically tensile-strained Germanium nanocrystals
Author
Nataraj, L. ; Xu, F. ; Cloutier, S.G.
Author_Institution
Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA
fYear
2010
fDate
1-3 Sept. 2010
Firstpage
54
Lastpage
56
Abstract
We report on the high room-temperature luminescence from Germanium nanocrystals synthesized by mechanical grinding. Transients and optical spectroscopy measurements are consistent with HRTEM and electron diffraction, suggesting high tensile strains favoring direct band-to-band transitions.
Keywords
electron diffraction; elemental semiconductors; energy gap; germanium; grinding; luminescence; nanostructured materials; transmission electron microscopy; Ge; HRTEM; direct band-to-band transitions; direct-bandgap emission; electron diffraction; hydrostatically tensile-strained germanium nanocrystals; luminescence; mechanical grinding; optical spectroscopy measurements; temperature 293 K to 298 K; Germanium; Nanocrystals; Optical diffraction; Optical variables measurement; Photoluminescence; Silicon; Tensile strain;
fLanguage
English
Publisher
ieee
Conference_Titel
Group IV Photonics (GFP), 2010 7th IEEE International Conference on
Conference_Location
Beijing
Print_ISBN
978-1-4244-6344-2
Type
conf
DOI
10.1109/GROUP4.2010.5643428
Filename
5643428
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