Details

Autor(en) / Beteiligte

• He, J. H.
• Wu, W. W.
• Lee, S. W.
• Chen, L. J.
• Chueh, Y. L.
• Chou, L. J.

Titel

Synthesis of blue-light-emitting Si1−xGex oxide nanowires

Ist Teil von

• Applied physics letters, 2005-06, Vol.86 (26)

Erscheinungsjahr

2005

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Blue-light-emitting Si1−xGex oxide nanowires have been grown on epitaxial Si0.8Ge0.2 alloys on silicon by thermal annealing in a quartz tube furnace in N2 ambient. The photoluminescence spectrum of Si1−xGex oxide nanostructures exhibits the blue-light emission with a peak at 415 nm, compared with the Si oxide nanowires with a peak at 470 nm. Nanowires with uncommon shapes, such as sunflowerlike and radiolarialike shape, have been observed. A field emission scanning electron microscope was used to monitor the growth of nanowires on the same patterned catalytic Au region. The growth can be understood in term of vapor-liquid-solid mechanism.