Rapid, low-temperature synthesis of single-crystalline Co3O4 nanorods on silicon substrates on a large scale

被引:91
作者
He, Liang [1 ]
Li, Zhengcao [1 ]
Zhang, Zhengjun [1 ]
机构
[1] Tsinghua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China
关键词
D O I
10.1088/0957-4484/19/15/155606
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
When heated in a rapid thermal processor at 350 degrees C in air, cobalt thin (50 nm thick) films were transformed into Co3O4 nanorods in minutes. The nanorods are single-crystalline and are typically several hundred nanometers long and several tens of nanometers in diameter. They exhibited room-temperature photoluminescence in the visible range and good field emission properties, i. e. a low turn-on field of similar to 2.8 V mu m(-1) and good stability at high emission currents. This study provides a simple but rapid approach that is compatible with microtechnology and is capable of fabricating metal oxide nanorods at low substrate temperatures, on a large scale.
引用
收藏
页数:4
相关论文
共 24 条
[1]   Optical recognition of CO and H-2 by use of gas-sensitive Au-Co3O4 composite films [J].
Ando, M ;
Kobayashi, T ;
Iijima, S ;
Haruta, M .
JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (09) :1779-1783
[2]   Growth control of tungsten oxide nanostructures on planar silicon substrates [J].
Gallea, Floriane ;
Li, Zhengcao ;
Zhang, Zhengjun .
APPLIED PHYSICS LETTERS, 2006, 89 (19)
[3]   Co3O4 nanoparticles produced by mechanochemical reactions [J].
García-Pacheco, G. ;
Cabanas-Moreno, J. G. ;
Yee-Madeira, H. ;
Cruz-Gandarilla, F. .
NANOTECHNOLOGY, 2006, 17 (10) :2528-2535
[4]   Deposition of thin films of cobalt oxides by MOCVD [J].
Gulino, A ;
Fiorito, G ;
Fragalà, I .
JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (04) :861-865
[5]   THE RAMAN-SPECTRA OF CO3O4 [J].
HADJIEV, VG ;
ILIEV, MN ;
VERGILOV, IV .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1988, 21 (07) :L199-L201
[6]   Co3O4 nanoboxes:: Surfactant-templated fabrication and microstructure characterization [J].
He, T ;
Chen, DR ;
Jiao, XL ;
Wang, YL .
ADVANCED MATERIALS, 2006, 18 (08) :1078-+
[7]   Direct growth of aligned carbon nanotube field emitter arrays onto plastic substrates [J].
Hofmann, S ;
Ducati, C ;
Kleinsorge, B ;
Robertson, J .
APPLIED PHYSICS LETTERS, 2003, 83 (22) :4661-4663
[8]   Size-dependent melting properties of small tin particles: Nanocalorimetric measurements [J].
Lai, SL ;
Guo, JY ;
Petrova, V ;
Ramanath, G ;
Allen, LH .
PHYSICAL REVIEW LETTERS, 1996, 77 (01) :99-102
[9]   A novel process from cobalt nanowire to Co3O4 nanotube [J].
Li, T ;
Yang, SG ;
Huang, LS ;
Gu, BX ;
Du, YW .
NANOTECHNOLOGY, 2004, 15 (11) :1479-1482
[10]   Co3O4 nanomaterials in lithium-ion batteries and gas sensors [J].
Li, WY ;
Xu, LN ;
Chen, J .
ADVANCED FUNCTIONAL MATERIALS, 2005, 15 (05) :851-857