PMID- 19049223
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20090129
LR  - 20190715
IS  - 1533-4880 (Print)
IS  - 1533-4880 (Linking)
VI  - 8
IP  - 8
DP  - 2008 Aug
TI  - Electron field emission from graphitic nanoflakes grown over vertically aligned 
      carbon nanotubes.
PG  - 4309-13
AB  - Single step growth of self-assembled graphitic nanoflakes (GNF) over carbon 
      nanotubes (CNT) on iron coated silicon(100) substrates is reported. These 
      nanostructures were grown by varying the deposition time in a microwave plasma 
      enhanced chemical vapor deposition reactor using acetylene, hydrogen and argon as 
      reactant gases. Scanning electron microscope (SEM) studies of the deposited 
      carbon films revealed that with increase in deposition time from 3 minutes to 6 
      minutes, the surface topography of the films transformed from one dimensional 
      cylindrical nanostructure to flat-shaped two-dimensional nanoflakes. Carbon film 
      deposited for 5 minutes showed improved surface coverage as compared to films 
      deposited for 6 minutes i.e., surface area of the CNT film covered with 
      nanoflakes increased as compared to carbon film deposited for higher durations. 
      Field emission studies of films deposited at 5 minutes and 6 minutes showed 
      increase in turn-on field, required for electron emission, from 2.7 V/microm to 
      2.9 V/microm respectively. However, such a combination of one dimension carbon 
      and two dimension carbon may prove useful in applications where high surface area 
      films are required.
FAU - Chhoker, S
AU  - Chhoker S
AD  - Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, 
      India.
FAU - Arora, S K
AU  - Arora SK
FAU - Srivastava, P
AU  - Srivastava P
FAU - Vankar, V D
AU  - Vankar VD
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Nanosci Nanotechnol
JT  - Journal of nanoscience and nanotechnology
JID - 101088195
EDAT- 2008/12/04 09:00
MHDA- 2008/12/04 09:01
CRDT- 2008/12/04 09:00
PHST- 2008/12/04 09:00 [pubmed]
PHST- 2008/12/04 09:01 [medline]
PHST- 2008/12/04 09:00 [entrez]
AID - 10.1166/jnn.2008.an39 [doi]
PST - ppublish
SO  - J Nanosci Nanotechnol. 2008 Aug;8(8):4309-13. doi: 10.1166/jnn.2008.an39.