Thillosen, N.
[Author];
Sebald, K.
[Author];
Hardtdegen, H.
[Author];
Meijers, R.
[Author];
Calarco, R.
[Author];
Montanari, S.
[Author];
Kaluza, N.
[Author];
Gutowski, J.
[Author];
Lüth, H.
[Author]
The State of Strain in Single GaN Nanocolumns As Derived from Micro-Photoluminescence Measurements
You can manage bookmarks using lists, please log in to your user account for this.
Media type:
E-Article
Title:
The State of Strain in Single GaN Nanocolumns As Derived from Micro-Photoluminescence Measurements
Contributor:
Thillosen, N.
[Author];
Sebald, K.
[Author];
Hardtdegen, H.
[Author];
Meijers, R.
[Author];
Calarco, R.
[Author];
Montanari, S.
[Author];
Kaluza, N.
[Author];
Gutowski, J.
[Author];
Lüth, H.
[Author]
imprint:
ACS Publ., 2006
Published in:Nano letters 6, 704 - 708 (2006). doi:10.1021/nl052456q
Footnote:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Description:
In the present paper, studies on the state of strain in single and ensembles of nanocolumns investigated by photoluminescence spectroscopy will be presented. The GaN nanocolumns were either grown in a bottom-up approach or prepared in a top-down approach by etching compact GaN layers grown on Si(111) and sapphire (0001) substrates. Experimental evidence for strain relaxation of the nanocolumns was found. The difference and development of the strain value for different nanocolumns could be verified by spatially resolved micro-photoluminescence on single nanocolumns separated from their substrate. A common D0X spectral position at 3.473 eV was found for all separated single GaN nanocolumns independent of the substrate or processing technique used, as expected for a relaxed system.