%0 Journal Article
%A Novák, J.
%A Križanová, Z.
%A Vávra, I.
%A Eliáš, P.
%A Hasenöhrl, S.
%A Laurenčíková, A.
%A Novotný, I.
%A Kováč, J.
%A Šutta, P.
%A Mikulics, Martin
%T Structural and optical properties of individual GaP/ZnO core–shell nanowires
%J Vacuum
%V 98
%@ 0042-207X
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2014-00593
%P 106 - 110
%D 2013
%X Structural and optical properties of ZnOeGaP coreeshell nanowires were studied by means of electron
%X microscopy and microphotoluminescence. A thin ZnO shell layer was deposited by RF sputtering on GaP
%X nanowires, which were grown on GaP (111)B substrates under vapoureliquidesolid mode by MOVPE.
%X The SEM and TEM characterization showed that the ZnO shells fully covered the surface of the NWs from
%X top to bottom. Each GaP NW core is composed of many well-defined twinned segments with the planes
%X of twinning oriented in perpendicular to the growth direction. This was contradicted in kinked GaP NWs:
%X their growth direction was initially perpendicular to the twinning planes, but once the NW had kinked, it
%X changed to lie within the twinning planes. The ZnO shell deposited on the GaP core has a columnar
%X morphology. The columns are inclined at a positive angle close to 70 with respect to the GaP growth
%X axis. All observed columns were tilted at this angle to the growth direction. Micro-photoluminescence
%X study showed that thermal annealing improved the quality of the ZnO crystallographic structure; the
%X annealing made observable the photoluminescence peak related to the band-to-band transition in ZnO.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000322805900020
%R 10.1016/j.vacuum.2012.12.005
%U https://juser.fz-juelich.de/record/150539