This title appears in the Scientific Report :
2006
Please use the identifier:
http://hdl.handle.net/2128/2033 in citations.
Please use the identifier: http://dx.doi.org/10.1021/nl052456q in citations.
The State of Strain in Single GaN Nanocolumns As Derived from Micro-Photoluminescence Measurements
The State of Strain in Single GaN Nanocolumns As Derived from Micro-Photoluminescence Measurements
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...
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Personal Name(s): | Thillosen, N. |
---|---|
Sebald, K. / Hardtdegen, H. / Meijers, R. / Calarco, R. / Montanari, S. / Kaluza, N. / Gutowski, J. / Lüth, H. | |
Contributing Institute: |
Institut für Halbleiterschichten und Bauelemente; ISG-1 Center of Nanoelectronic Systems for Information Technology; CNI |
Published in: | Nano letters, 6 (2006) S. 704 - 708 |
Imprint: |
Washington, DC
ACS Publ.
2006
|
Physical Description: |
704 - 708 |
DOI: |
10.1021/nl052456q |
PubMed ID: |
16608268 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Nano Letters
6 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1021/nl052456q in citations.
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. |