%0 Conference Paper
%A Schumann, T.
%A Gotschke, T.
%A Limbach, F.
%A Stoica, T.
%A Calarco, R.
%T Cathodoluminescence spectroscopy on selectively grown GaN nanowires
%M FZJ-2015-05151
%@ 978-0-81948-476-5
%P 000
%D 2011
%< : [Proceedings] - , 2011. - ISBN  - doi:10.1117/12.878836
%X GaN nanowires (NWs) were grown selectively on Si(111) substrate without catalyst by plasma-assisted molecular-beam epitaxy under N-rich conditions. The selective growth was obtained using regular arrays of holes patterned in a silicon oxide layer on top of a thin AlN buffer. The optical properties of the selectively grown GaN NWs have been studied using cathodoluminescence (CL) spectroscopy. Both, CL spectra measured on NW ensembles and spatially resolved monochromatic images were investigated. From a comparison of morphology and CL studies it emerges that NW coalescence is responsible for the appearance of the defect related emission.
%B SPIE OPTO
%C 22 Jan 2011 - 27 Jan 2011, San Francisco (California)
Y2 22 Jan 2011 - 27 Jan 2011
M2 San Francisco, California
%F PUB:(DE-HGF)8
%9 Contribution to a conference proceedings
%U <Go to ISI:>//WOS:000298084200003
%R 10.1117/12.878836
%U https://juser.fz-juelich.de/record/203138