Premium
Crystalline bismuth oxide nanorods fabricated on Pt‐coated substrates using a trimethylbismuth and oxygen mixture
Author(s) -
Kim Hyoun Woo,
Lee Jong Woo,
Shim Seung Hyun,
Kebede Mesfin A.,
Lee Chongmu
Publication year - 2008
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200711155
Subject(s) - nanorod , bismuth , scanning electron microscope , transmission electron microscopy , materials science , photoluminescence , chemical vapor deposition , microstructure , chemical engineering , nanotechnology , oxide , fabrication , analytical chemistry (journal) , chemistry , optoelectronics , metallurgy , composite material , organic chemistry , medicine , alternative medicine , pathology , engineering
The current work reports the fabrication of crystalline Bi 2 O 3 nanorods on Pt‐coated Si substrates using trimethylbismuth and O 2 as the bismuth and the oxygen sources, respectively, in the metalorganic chemical vapor deposition process. Their microstructures were characterized by scanning electron microscopy, X‐ray diffraction, and transmission electron microscopy. The obtained nanorods were crystalline, with their diameters in the range of 20–200 nm. The absence of tip‐nanoparticle and the presence of predeposited Bi 2 O 3 layer indicated that the growth was dominated by a vapor‐solid process. The photoluminescence measurements of the Bi 2 O 3 nanorods at room temperature exhibited an emission band peaked at around 422 nm. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)