Optical Absorption and Electrical Conductivity of Amorphous Carbon Thin Films from Camphor: A Natural Source

1999 ◽  
Vol 38 (Part 1, No. 2A) ◽  
pp. 658-663 ◽  
Author(s):  
Sharif Md. Mominuzzaman ◽  
Kalaga Murali Krishna ◽  
Tetsuo Soga ◽  
Takashi Jimbo ◽  
Masayoshi Umeno
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Optical Absorption ◽  
Amorphous Carbon ◽  
Natural Source ◽  
Carbon Thin Films

The Effect of Camphor Oil Amounts on the Properties of Amorphous Carbon Thin Films by Thermal Chemical Vapor Deposition

2012 ◽  
Vol 576 ◽  
pp. 611-614
Author(s):  
K. Dayana ◽  
A.N. Fadzilah ◽  
Mohamad Rusop
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Chemical Vapor Deposition ◽  
Amorphous Carbon ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Thermal Chemical Vapor Deposition ◽  
Current Voltage ◽  
Carbon Thin Films ◽  
Camphor Oil

Amorphous carbon thin films have been deposited by a simple Thermal Chemical Vapor Deposition (CVD) with varying the amount of natural precursor (camphor oil) onto the glass substrates. In this work, we have investigated the effect of different amount of camphor oil on the evolution of electrical conductivity and the optical and structural properties of amorphous carbon thin films. The amorphous carbon thin films were characterized by using current-voltage (I-V) measurement, UV-VIS-NIR spectroscopy and Raman spectroscopy. The current-voltage (I-V) study reveals that the highest electrical conductivity was deposited at 3 ml camphor oil. The optical band gap is almost unchanged with the increase of camphor oil amount. Raman result indicates that amorphous carbon thin films consists a mixture of sp2 and sp3 bonded carbon atoms.

Electron-diffraction studies of amorphous carbon thin films

1993 ◽  
Vol 51 ◽  
pp. 1100-1101
Author(s):  
David A. Muller
Keyword(s):  
Thin Films ◽  
Electron Diffraction ◽  
Amorphous Carbon ◽  
Glassy Carbon ◽  
Spherical Structure ◽  
Local Ordering ◽  
Carbon Arc ◽  
Similar Appearance ◽  
Carbon Thin Films ◽  
Large Spherical

The sp2 rich amorphous carbons have a wide variety of microstructures ranging from flat sheetlike structures such as glassy carbon to highly curved materials having similar local ordering to the fullerenes. These differences are most apparent in the region of the graphite (0002) reflection of the energy filtered diffracted intensity obtained from these materials (Fig. 1). All these materials consist mainly of threefold coordinated atoms. This accounts for their similar appearance above 0.8 Å-1. The fullerene curves (b,c) show a string of peaks at distance scales corresponding to the packing of the large spherical and oblate molecules. The beam damaged C60 (c) shows an evolution to the sp2 amorphous carbons as the spherical structure is destroyed although the (220) reflection in fee fcc at 0.2 Å-1 does not disappear completely. This 0.2 Å-1 peak is present in the 1960 data of Kakinoki et. al. who grew films in a carbon arc under conditions similar to those needed to form fullerene rich soots.

Atomic hydrogen interactions with amorphous carbon thin films

2009 ◽  
Vol 106 (7) ◽  
pp. 073305 ◽  
Author(s):  
Bhavin N. Jariwala ◽  
Cristian V. Ciobanu ◽  
Sumit Agarwal
Keyword(s):  
Thin Films ◽  
Amorphous Carbon ◽  
Atomic Hydrogen ◽  
Carbon Thin Films

Temperature dependence of the mechanical properties of tetrahedrally coordinated amorphous carbon thin films

2005 ◽  
Vol 87 (16) ◽  
pp. 161915 ◽  
Author(s):  
David A. Czaplewski ◽  
J. P. Sullivan ◽  
T. A. Friedmann ◽  
J. R. Wendt
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Temperature Dependence ◽  
Amorphous Carbon ◽  
Carbon Thin Films

scholarly journals Hydrogenated amorphous carbon thin films deposition by pulsed DC plasma enhanced by electrostatic confinement

2014 ◽  
Vol 258 ◽  
pp. 219-224 ◽  
Author(s):  
S.M.M. Dufrène ◽  
F. Cemin ◽  
M.R.F. Soares ◽  
C. Aguzzoli ◽  
M.E.H. Maia da Costa ◽  
...  
Keyword(s):  
Thin Films ◽  
Amorphous Carbon ◽  
Dc Plasma ◽  
Hydrogenated Amorphous Carbon ◽  
Pulsed Dc ◽  
Electrostatic Confinement ◽  
Carbon Thin Films ◽  
Hydrogenated Amorphous

Electrical transport and morphological study of PLD-grown nanostructured amorphous carbon thin films

2006 ◽  
Vol 17 (20) ◽  
pp. 5244-5247 ◽  
Author(s):  
K Mohan Kant ◽  
N Mahipal Reddy ◽  
N Rama ◽  
K Sethupathi ◽  
M S Ramachandra Rao
Keyword(s):  
Thin Films ◽  
Amorphous Carbon ◽  
Electrical Transport ◽  
Morphological Study ◽  
Carbon Thin Films
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