Download or read book The Optical Characterization of Hydrogenated Amorphous Carbon Thin Films Deposited by a DC PECVD Method written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Optical Properties of Hydrogenated Amorphous Carbon a C written by Rohayu Sabrina Mhd. Saad and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Structural and Optical Properties of Hydrogenated Amorphous Carbon a C H Thin Films Deposited Using a Direct Current plasma Enhanced Chemical Vapour Deposition DC PECVD Technique written by Suriani Abu Bakar and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Optical Properties of Hydrogenated Amorphous Carbon a C H Thin Films Deposited Using DC PECVD Technique written by Bakar Ismail and published by . This book was released on 2009 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Properties of Hydrogenated Amorphous Carbon a C H Thin Film Deposited by DC PECVD Method written by Mohd. Firdaus Md. Shah and published by . This book was released on 2008 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural and Optical Characterization of Hydrogenated Amorphous Carbon Thin Films written by Dammika P. Manage and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of hydrogenated amorphous carbon (a-C:H) semiconducting thin films was deposited using the dc saddle field glow discharge deposition technique. The ion energy during the deposition was varied to achieve films ranging from soft to hard a-C:H. In order to study the structure and the properties of a-C:H films, ultraviolet, visible, infrared, photoluminescence, and X-ray Auger electron spectroscopies, scanning electron microscopy, and mass density measurements, were used as diagnostic techniques to extract information on growth rate, mass density, sp2/sp3 ratio, hydrogen concentration, Tauc gap, photoluminescence, concentration of non-radiative recombination centers, and the degree of cross-linking of the carbon network. Based on these results, the films studied in the present research are found to consist of sp2carbon clusters of which the size increases with increasing mean ion energy during the deposition, resulting in a lower Tauc gap; this is explained in terms of the Robertson model. The growth rate of the films increases due to an increase in the concentration of unsaturated bond sites which act as chemisorption centers for radicals on the growing film surface. The increased hydrogen evolution from the film at higher ion energies results in increases in the sp2 fraction, the degree of cross-linking of the C-C network, and the mass density of a-C:H films. Atmospheric aging of soft a-C:H films reveals a decrease in the concentration of C-H bonds in a-C:H. The proposed reaction paths for the hydrolysis and oxidation of C:H films indicate that the films mainly react with water. Thermal annealing of a-C:H films in vacuum greatly influences the soft a-C:H films, in which the chemical bonds in the hydrocarbon network are restructured due to the evolution of hydrogen, which results in a graphitic structure.

Download or read book Structural and Optical Characterization of Hydrogenated Amorphous Carbon Thin Films written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural and Optical Characterization of Hydrogenated Amorphous Carbon Thin Films microform written by Dammika P. Manage and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1998 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of Optical Properties Hydrogenated Amorphous Carbon a C H Thin Film Prepared by DC PECVD written by ld Nurulnisa Rosli and published by . This book was released on 2010 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Properties and Characterization of Amorphous Carbon Films written by J.J. Pouch and published by Trans Tech Publications Ltd. This book was released on 1991-01-01 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous, hydrogenated carbon (AHC) films can be deposited on various substrates using several techniques, e.g. plasma deposition and ion beam deposition. The resulting films can be hard, wear resistant and transparent.

Download or read book Optical Properties of Hydrogenated Amorphouus Carbon Thin Films Using DC PECVD Technique written by ld Nuruljannah Hashim and published by . This book was released on 2010 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Properties of Hydrogenated Amorphous Carbon a C H Prepared by DC PECVD written by Kai Fuu Yong (ld) and published by . This book was released on 2009 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Jarvis Conklin Mortgage Trust Compamy Kansas City Mo written by and published by . This book was released on with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Hydrogenated Amorphous Carbon Thin Films written by Dale Gilbert Thompson and published by . This book was released on 1988 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation and Characterization of Hydrogenated Amorphous Carbon Films written by B. Meyerson and published by . This book was released on 1981 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical and Mechanical Properties of Amorphous Hydrogenated Carbon Thin Films written by Calvin Bradford Hopper and published by . This book was released on 1991 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation and Characterization of Hydrogenated Amorphous Silicon Thin Films and Thin Film Solar Cells Produced by Ion Plating Techniques Final Report 1 January 1979 31 May 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion plating techniques for the preparation of hydrogenated amorphous silicon thin films have been successfully developed. The technique involves essentially the evaporation of elemental silicon through a d.c. produced hydrogen plasma. In this way hydrogen has been successfully incorporated into amorphous silicon films in concentrations as high as 30 atomic percent. Infrared spectroscopy indicates the usual SiHx stretching mode at approximately 2000 cm−1. Further evidence for the bonding of hydrogen was obtained from ESR measurement of hydrogenated and unhydrogenated samples. The measured unpaired spin density was a factor of 25 less in the hydrogenated sample. The optical absorption edges of the hydrogenated films fell in the usual range between 1.7 and 1.9 eV. Electrical conductivity measurements indicated a substantial reduction in the density of defect states in the gap as expected. It was also shown that hydrogenated amorphous silicon prepared by ion-plating could be doped by co-evaporation of the dopant element during film deposition. Both co-evaporated phosphorous and co-evaporated bismuth have been found to substantially increase the dark conductivity of a-Si:H while shifting the Fermi level towards the conduction band edge. An x-ray method for estimating the density and hydrogen content of a-Si:H has been developed. The measurement of strain in a-Si:H thin films is discussed. (WHK).