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Hydrogenated Amorphous Silicon Films Prepared By Glow Discharge Of Disilane Final Subcontract Report 16 December 1987 28 February 1988
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Book Synopsis Hydrogenated Amorphous Silicon Films Prepared by Glow Discharge of Disilane, Final Subcontract Report, 16 December 1987 - 28 February 1988 by :
Download or read book Hydrogenated Amorphous Silicon Films Prepared by Glow Discharge of Disilane, Final Subcontract Report, 16 December 1987 - 28 February 1988 written by and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diagnostics of a Glow Discharge Used to Produce Hydrogenated Amorphous Silicon Films: A Final Subcontract Report by :
Download or read book Diagnostics of a Glow Discharge Used to Produce Hydrogenated Amorphous Silicon Films: A Final Subcontract Report written by and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis Diagnostics of Glow Discharges Used to Produce Hydrogenated Amorphous Silicon Films by :
Download or read book Diagnostics of Glow Discharges Used to Produce Hydrogenated Amorphous Silicon Films written by and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preparation and Characterization of Hydrogenated Amorphous Silicon Films Produced by Ion Plating and Hydrogenated Amorphous Boron Films Produced by Glow Discharge Decomposition by :
Download or read book Preparation and Characterization of Hydrogenated Amorphous Silicon Films Produced by Ion Plating and Hydrogenated Amorphous Boron Films Produced by Glow Discharge Decomposition written by and published by . This book was released on 1981 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preparation and Characterization of Hydrogenated Amorphous-silicon Films Produced by Ion Plating and Hydrogenated Amorphous-boron Films Produced by Glow Discharge Decomposition by : Franklin H. Cocks
Download or read book Preparation and Characterization of Hydrogenated Amorphous-silicon Films Produced by Ion Plating and Hydrogenated Amorphous-boron Films Produced by Glow Discharge Decomposition written by Franklin H. Cocks and published by . This book was released on 1981 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990-06 with total page 1328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth Mechanisms and Characterization of Hydrogenated Amorphous-silicon-alloy Films. Final Subcontract Report, 15 February 1991--14 April 1994 by :
Download or read book Growth Mechanisms and Characterization of Hydrogenated Amorphous-silicon-alloy Films. Final Subcontract Report, 15 February 1991--14 April 1994 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes work performed to better understand the atomic-scale structure of glow-discharge-produced a-Si:H, a-Ge:H, and a-Si:Ge:H films; its effect on film quality; and its dependence on deposition discharge conditions. Hydrogenated a-Si films are from a silane rf discharge onto atomically flat crystal Si and GaAs substrates. The substrates are then transferred in a scanning tunneling microscope, where the atomic-scale surface morphology is measured. The films were deposited using device-quality deposition conditions; IR absorption, [sigma][sub L], and [sigma][sub D] indicate high-quality intrinsic films. From the thickness dependence of the surface morphology, we determined that the films initially conform smoothly to an atomically flat Si or GaAs substrate, but as the thickness increases the roughness steadily increases to approximately 10% of the length of the scanned region. The surface of 100--400-nm-thick films is highly inhomogeneous, with steep hills and canyons in some areas and large atomically smooth regions in others. These unexpectedly large surface irregularities indicate severe and often connected void structures in the growing film, as well as relatively limited-range surface diffusion of the incorporating SiH[sub 3] radicals. On the other hand, large atomically flat surface were occasionally found, indicating the possibility of growing a homogeneous and compact amorphous film if appropriate growth conditions could be discovered.
Book Synopsis Growth Mechanisms and Characterization of Hydrogenated Amorphous-silicon-alloy Films. Annual Subcontract Report, 14 February 1992--13 February 1993 by :
Download or read book Growth Mechanisms and Characterization of Hydrogenated Amorphous-silicon-alloy Films. Annual Subcontract Report, 14 February 1992--13 February 1993 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes work performed to better understand the atomic-scale structure of glow-discharge-produced a-Si:H, a Ge:H, and a-Si:Ge:H films; its effect on film quality; and its dependence on deposition discharge conditions. Hydrogenated a- Si films are deposited from a silane rf discharge onto atomically flat crystal Si and GaAs substrates. The substrates are then transferred in vacuum to a scanning tunneling microscope, where the atomic-scale surface morphology is measured. The films were deposited at T[sub s] = 30[degree]C and 250[degree]C from a silane rf glow discharge using device-quality deposition conditions of 2.66 Pa (0.5 Torr) silane pressure, 1.7 [Angstrom]/s deposition rate, and small power/flow; IR absorption, [sigma][sub L], and [sigma][sub D] indicate high-quality intrinsic films. From the thickness dependence of the surface morphology, we determined that the films initially conform smoothly to an atomically flat Si or GaAs substrate, but as the thickness increases the roughness steadily increases to approximately 10% of the length of the scanned region. The surface of 100-400-nm-thick films is highly inhomogeneous, with steep hills and canyons in some areas and large atomically smooth regions in others. These unexpectedly large surface irregularities indicate severe and often connected void structures in the growing film, as well as relatively limited-range surface diffusion of the incorporating SiH[sub 3] radicals. On the other hand, large areas of atomically flat surface were occasionally found, indicating the possibility of growing a homogeneous and compact amorphous film if appropriate growth conditions could be discovered.
Book Synopsis Diagnostics of a Glow Discharge Used to Produce Hydrogenated Amorphous Silicon Films by :
Download or read book Diagnostics of a Glow Discharge Used to Produce Hydrogenated Amorphous Silicon Films written by and published by . This book was released on 1982 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic-scale Characterization of Hydrogenated Amorphous-silicon Films and Devices by :
Download or read book Atomic-scale Characterization of Hydrogenated Amorphous-silicon Films and Devices written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our research is concerned with improving the electronic properties of hydrogenated amorphous silicon (a-Si:H) films and of photovoltaic (PV) cells that use these films. Two approaches toward this goal are being taken. One is to establish the character of silicon particle growth in the rf glow discharges that are used to make the films and PV cells, and to understand the particle incorporation into the films. The ultimate goal of this effort is to find mitigating techniques that minimize the particle incorporation. During this contract period, we have developed a novel particle light-scattering technique that provides a very detailed and sensitive diagnostic of the particles suspended in the discharge, The second program is directed toward measuring the electronic properties of these thin-film PV cells, as a function of depth within the cell. The approach being taken is to use a scanning tunneling microscope to measure the depth-dependent electronic properties of cross-sectioned PV cells. During the present period, cell cleaving and cross-section locating methods, both in a ultrahigh vacuum environment, have been successfully developed.
Book Synopsis The Effects of Deposition Parameters on Hydrogenated Amorphous Silicon Films Fabricated by Microwave Glow Discharge Techniques by : Sergio Ruperto Tadeo Mejia Zenteno
Download or read book The Effects of Deposition Parameters on Hydrogenated Amorphous Silicon Films Fabricated by Microwave Glow Discharge Techniques written by Sergio Ruperto Tadeo Mejia Zenteno and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic-scale Characterization of Hydrogenated Amorphous-silicon Films and Devices by : Alan C. Gallagher
Download or read book Atomic-scale Characterization of Hydrogenated Amorphous-silicon Films and Devices written by Alan C. Gallagher and published by . This book was released on 1997 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our research is concerned with improving the electronic properties of hydrogenated amorphous silicon (a-Si:H) films and of photovoltaic (PV) cells that use these films. Two approaches toward this goal are being taken. One is to establish the character of silicon particle growth in the rf glow discharges that are used to make the films and PV cells, and to understand the particle incorporation into the films. The ultimate goal of this effort is to find mitigating techniques that minimize the particle incorporation. During this contract period, we have developed a novel particle light-scattering technique that provides a very detailed and sensitive diagnostic of the particles suspended in the discharge, The second program is directed toward measuring the electronic properties of these thin-film PV cells, as a function of depth within the cell. The approach being taken is to use a scanning tunneling microscope to measure the depth-dependent electronic properties of cross-sectioned PV cells. During the present period, cell cleaving and cross-section locating methods, both in a ultrahigh vacuum environment, have been successfully developed.
Book Synopsis Growth Mechanisms and Characterization of Hydrogenated Amorphous-silicon-alloy Films by : Alan C. Gallagher
Download or read book Growth Mechanisms and Characterization of Hydrogenated Amorphous-silicon-alloy Films written by Alan C. Gallagher and published by . This book was released on 1994 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Deposition Parameters on Hydrogenated Amorphous Silicon Films Fabricated by Microwave Glow Discharge Techniques by : Sergio Ruperto Tadeo Mejia Zenteno
Download or read book The Effects of Deposition Parameters on Hydrogenated Amorphous Silicon Films Fabricated by Microwave Glow Discharge Techniques written by Sergio Ruperto Tadeo Mejia Zenteno and published by . This book was released on 1984 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
