Structural characterization and field emission of stacked-cone GaN nanorods

Li, Chun, Huang, Yang, Bando, Yoshio and Golberg, Dmitri (2010). Structural characterization and field emission of stacked-cone GaN nanorods. In: INEC 2010 : 2010 3rd International Nanoelectronics Conference proceedings. INEC 2010 : 2010 3rd International Nanoelectronics Conference, Hong Kong, People's Republic of China, (1201-1202). 3-8 January 2010. doi:10.1109/INEC.2010.5424952


Author Li, Chun
Huang, Yang
Bando, Yoshio
Golberg, Dmitri
Title of paper Structural characterization and field emission of stacked-cone GaN nanorods
Conference name INEC 2010 : 2010 3rd International Nanoelectronics Conference
Conference location Hong Kong, People's Republic of China
Conference dates 3-8 January 2010
Proceedings title INEC 2010 : 2010 3rd International Nanoelectronics Conference proceedings
Journal name Inec: 2010 3rd International Nanoelectronics Conference, Vols 1 and 2
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2010
Sub-type Other
DOI 10.1109/INEC.2010.5424952
ISBN 978-142443544-9
Start page 1201
End page 1202
Total pages 2
Language eng
Formatted Abstract/Summary
The stacked-cone morphology GaN nanorods with diameters of 100-400 nm and lengths of tens of micrometers were synthesized by metal-catalyzed chemical vapor deposition. The stacked-cone GaN nanorods possessed dominated hexagonal crystalline structure with growth direction along [0001]. TEM analysis showed that the top tip had a bicrystal structure of hexagonal and cubic phases, while the stem and side tip had single hexagonal phase. Room temperature field emission test showed the turn-on field was 8.9 V/µm at 0.1 µA/cm2 and current density was about 0.1 mA/cm2  at 14.2 V/µm at a vacuum gap of 70 µm. The field enhancement factor β and anode-cathode gap d follows a universal equation. The simple synthesis method and good emission properties imply their potential application in vacuum microelectronic.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Non-UQ

 
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