scholarly journals Raman spectroscopy and conductivity variation of nanocluster carbon thin films grown using a room temperature based cathodic arc process

2011 ◽  
Vol 18 (3) ◽  
pp. 797-803 ◽  
Author(s):  
Shounak De ◽  
S. Niranjana ◽  
B.S. Satyanarayana ◽  
K. Mohan Rao
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Room Temperature ◽  
Conductivity Variation ◽  
Carbon Thin Films ◽  
Cathodic Arc

Characteristics of CZTSSe Thin Films Prepared by Selenization of Sputtered Cu, Sn and ZnS Layers

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940040 ◽  
Author(s):  
N. Akcay ◽  
S. Ozcelik ◽  
E. Zaretskaya ◽  
R. Juskenas
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Surface Morphology ◽  
Magnetron Sputtering ◽  
Room Temperature ◽  
Sem Study ◽  
Packed Structure

We reported the growth of CZTSSe thin films on Mo-coated SLG substrates by the two-step approach which includes the deposition of precursor films by the magnetron sputtering method at room temperature followed by selenization of the precursor films at 560∘C. Formation of CZTSSe films with the kesterite structure was confirmed by XRD and Raman spectroscopy analyses. The films are slightly Cu-rich and Zn-deficient. SEM study shown that the films have uniform surface morphology and densely packed structure without any voids and cracks.

scholarly journals Comparison of Carbon Thin Films with Low Secondary Electron Yield Deposited in Neon and Argon

Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 884
Author(s):  
Yuxin Zhang ◽  
Yigang Wang ◽  
Sihui Wang ◽  
Wei Wei ◽  
Xiaoqin Ge ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Amorphous Carbon ◽  
Secondary Electron ◽  
High Energy ◽  
Carbon Coatings ◽  
Secondary Electron Yield ◽  
Electron Yield ◽  
Carbon Thin Films ◽  
Amorphous Carbon Coatings

Modification of vacuum chamber surface properties by introducing a layer of material with low secondary electron yield (SEY) is one of the most useful solutions to suppress the electron-cloud in high-energy particle accelerators. In the present work, amorphous carbon thin films have been produced by DC magnetron sputtering with Neon and Argon sputtering gases. Microstructures of the thin films have been characterized by using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The sp2 and sp3 hybridized carbon atoms are evaluated using X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The amorphous carbon coatings comprise tiny granularities of tens of nanometers. The amorphous carbon films show more graphite-like properties as revealed by XPS and Raman spectroscopy. The secondary electron emission measurement results indicate that amorphous carbon coatings present SEY of <1.2. The thin film deposited by Ne exhibits a higher sp2 hybridization content, leading to a slightly lower SEY compared with the film produced with Ar.

Production and Characterization of Carbon Thin Films by the Magnetron Sputtering Technique

2016 ◽  
Vol 881 ◽  
pp. 471-474 ◽  
Author(s):  
D.L.C. Silva ◽  
L.R.P Kassab ◽  
J.R. Martinelli ◽  
A.D. Santos ◽  
M.F. Pillis
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Magnetron Sputtering ◽  
Carbon Film ◽  
Carbon Films ◽  
Buffer Layers ◽  
Degree Of Crystallinity ◽  
X Ray Diffraction ◽  
Carbon Thin Films

Carbon thin films were produced by the magnetron sputtering technique. The deposition of the carbon films was performed on Co buffer-layers previously deposited on c-plane (0001) sapphire substrates. The samples were thermally treated under vacuum conditions and characterized by Raman spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD). The XRD peak related to the carbon film was observed and the Raman spectroscopy indicated a good degree of crystallinity of the carbon film.

Control of stress and delamination in single and multi-layer carbon thin films prepared by cathodic arc and RF plasma deposition and implantation

2006 ◽  
Vol 200 (22-23) ◽  
pp. 6405-6408 ◽  
Author(s):  
Peter C.T. Ha ◽  
D.R. McKenzie ◽  
M.M.M. Bilek ◽  
E.D. Doyle ◽  
D.G. McCulloch ◽  
...  
Keyword(s):  
Thin Films ◽  
Plasma Deposition ◽  
Rf Plasma ◽  
Carbon Thin Films ◽  
Cathodic Arc

scholarly journals Origin of Ultraviolet Luminescence from Bulk ZnO Thin Films Grown by Molecular Beam Epitaxy

2011 ◽  
Vol 1 ◽  
pp. 135-139 ◽  
Author(s):  
M. Asghar ◽  
Khalid Mahmood ◽  
Adnan Ali ◽  
M.A. Hasan ◽  
I. Hussain ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Molecular Beam Epitaxy ◽  
Room Temperature ◽  
Molecular Beam ◽  
Energy Dispersive ◽  
Zno Thin Films ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Luminescence

Origin of ultraviolet (UV) luminescence from bulk ZnO has been investigated with the help of photoluminescence (PL) measurements. Thin films of ZnO having 52%, 53% and 54% of Zn-contents were prepared by means of molecular beam epitaxy (MBE). We observed a dominant UV line at 3.28 eV and a visible line centered at 2.5 eV in the PL spectrum performed at room temperature. The intensity of UV line has been found to depend upon the Zn percentage in the ZnO layers. Thereby, we correlate the UV line in our samples with the Zn-interstitials-bound exciton (Zni-X) recombination. The results obtained from, x-ray diffraction, the energy dispersive X-ray spectrum (EDAX) and Raman spectroscopy supported the PL results.

Enhancement of fluorine doped amorphous carbon thin films from microwave surface wave plasma activated above room temperature

2009 ◽  
Vol 18 (2-3) ◽  
pp. 465-468 ◽  
Author(s):  
Dilip Chandra Ghimire ◽  
Sudip Adhikari ◽  
Hare Ram Aryal ◽  
Golap Kalita ◽  
Masayoshi Umeno
Keyword(s):  
Thin Films ◽  
Surface Wave ◽  
Amorphous Carbon ◽  
Room Temperature ◽  
Carbon Thin Films

Preparation of diamond like carbon thin films above room temperature and their properties

2008 ◽  
Vol 17 (4-5) ◽  
pp. 680-683 ◽  
Author(s):  
Hare Ram Aryal ◽  
Sudip Adhikari ◽  
Dilip Chandra Ghimire ◽  
Golap Kalita ◽  
Masayoshi Umeno
Keyword(s):  
Thin Films ◽  
Room Temperature ◽  
Diamond Like Carbon ◽  
Carbon Thin Films
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