TY - JOUR
T1 - ZnO/cubic (Mg,Zn)O radial nanowire heterostructures
AU - Heo, Y. W.
AU - Kaufman, M.
AU - Pruessner, K.
AU - Siebein, K. N.
AU - Norton, D. P.
AU - Ren, F.
PY - 2005/2
Y1 - 2005/2
N2 - The formation and properties of radial heteroepitaxial ZnO/(Mg,Zn)O nanowires is reported in which the (Mg,Zn)O is cubic. Synthesis is achieved via a catalyst-driven molecular beam epitaxy technique. The nanowires were grown on Ag-coated Si substrates at growth temperatures ranging from Tg = 300 to 500 °C, using Zn, Mg, and O3/O2 as the reactive flux. Structural and compositional analyses indicate that the core of the nanowire is ZnO possessing the hexagonal wurtzite structure, with the (Mg,Zn)O sheath assuming the cubic rock salt structure. Since (Mg,Zn)O has a larger band-gap energy (up to 7.8 eV) than that of ZnO (3.37 eV), these radial heterostructure nanorods provide an interesting system for quantum confinement and one-dimensional nanoscale device studies.
AB - The formation and properties of radial heteroepitaxial ZnO/(Mg,Zn)O nanowires is reported in which the (Mg,Zn)O is cubic. Synthesis is achieved via a catalyst-driven molecular beam epitaxy technique. The nanowires were grown on Ag-coated Si substrates at growth temperatures ranging from Tg = 300 to 500 °C, using Zn, Mg, and O3/O2 as the reactive flux. Structural and compositional analyses indicate that the core of the nanowire is ZnO possessing the hexagonal wurtzite structure, with the (Mg,Zn)O sheath assuming the cubic rock salt structure. Since (Mg,Zn)O has a larger band-gap energy (up to 7.8 eV) than that of ZnO (3.37 eV), these radial heterostructure nanorods provide an interesting system for quantum confinement and one-dimensional nanoscale device studies.
UR - http://www.scopus.com/inward/record.url?scp=10644245958&partnerID=8YFLogxK
U2 - 10.1007/s00339-004-2667-1
DO - 10.1007/s00339-004-2667-1
M3 - Article
AN - SCOPUS:10644245958
SN - 0947-8396
VL - 80
SP - 263
EP - 266
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 2
ER -