Tunable field emission characteristics of ZnO nanowires coated with varied thickness of lanthanum boride thin films

2013 ◽  
Vol 132 ◽  
pp. 36-40 ◽  
Author(s):  
C.X. Zhao ◽  
Y.F. Li ◽  
Jun Chen ◽  
S.Z. Deng ◽  
N.S. Xu
2005 ◽  
Vol 475-479 ◽  
pp. 3595-3598
Author(s):  
Lan Zhang ◽  
Hui Zhong Ma ◽  
Xue Xiang Li ◽  
Ning Yao ◽  
Bing Lin Zhang

Carbon nitride nanotubes (CN-NT) thin films were prepared on Ni-Cr coated glass substrate by microwave plasma enhanced chemical vapor deposition at a relatively low temperature of 600~650 °C. The morphology of the films were observed by scanning electron microscopy. The microstructure of the film were analyzed by x-ray photoelectron spectroscopy, x-ray diffraction, and Raman spectroscopy. The characteristics of field emission of CN-NT thin films were measured. Experimental results indicate that the film structure and properties of the field electron emission are related to flow ratio of N2 to CH4. When the flow ratio of N2 to CH4 was 3.3, the obtained film had a better field electron emission characteristics. The turn-on field of the film was 3.7 V/µm . The current density was 413.3 µA/cm2 at an electric field of 8 V/µm.


2011 ◽  
Vol 110-116 ◽  
pp. 1918-1922 ◽  
Author(s):  
Yong Ai Zhang ◽  
Jin Yang Lin ◽  
Chao Xing Wu ◽  
Tai Liang Guo

Uniformly distributed and quasi-perpendicular patterned ZnO nanowires were synthesized on Ag electrodes coated Si substrate by thermal evaporation. Field emission (FE) measurements show that its turn-on field is 3.65V/µm at current density of 10µA/cm2 and its the threshold field at current density of 1mA/cm2 is about 6.56 V/µm at an emitter-anode gap of 400µm. and the fluctuation of FE current density is smaller than 10% for 3.5h at electric field of 6V/µm. The low turn-on field and good stability indicates that it offers advantages as field emitter for much potential application.


RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 70059-70063 ◽  
Author(s):  
C. X. Zhao ◽  
S. Z. Deng ◽  
N. S. Xu ◽  
Jun Chen

Effects of atomic oxygen exposure on gasochromism, chemical state and field emission properties of W20O58 nanowires have been investigated. We attempt to unvelling the origin for better understanding of the observed field emission characteristics.


2013 ◽  
Vol 231 ◽  
pp. 423-427 ◽  
Author(s):  
Jyh-Liang Wang ◽  
Tsang-Yen Hsieh ◽  
Po-Yu Yang ◽  
Chuan-Chou Hwang ◽  
Der-Chi Shye ◽  
...  

1997 ◽  
Vol 36 (Part 2, No. 8A) ◽  
pp. L1051-L1054 ◽  
Author(s):  
Soon Joon Rho ◽  
Jae Yeob Shim ◽  
Eung Joon Chi ◽  
Hong Koo Baik ◽  
Sung-Man Lee

Vacuum ◽  
2007 ◽  
Vol 82 (1) ◽  
pp. 30-34 ◽  
Author(s):  
Qiuxiang Zhang ◽  
Yongsheng Zhang ◽  
Ke Yu ◽  
Ziqiang Zhu

Sign in / Sign up

Export Citation Format

Share Document