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Phase I of the automated array assembly task of the low cost silicon solar array project. Technical quarterly report No. 3

Description: A matrix of possible process steps is presented. Each process is evaluated by suitability criteria and categorized with respect to future usefulness. From the processes which have a high probability of incorporation into a future manufacturing factory, a possible process sequence is chosen. Studies of detailed cost analysis and factory projections have been initiated. Reliability considerations are discussed for module interconnections and encapsulant materials.
Date: October 1, 1976
Creator: Coleman, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase I of the Automated Array Assembly Task of the Low Cost Silicon Solar Array Project. Motorola report No. 2258/1. Technical quarterly report No. 1

Description: Phase I of the Automated Array Assembly Task, LCSSAP, is concerned with a comprehensive assessment of the improvements in existing technology that may be needed in order to develop, by 1985, an industrial capability for low cost, mass production of very durable silicon solar photovoltaic modules and arrays. Design criteria for efficient solar cells are discussed, emphasis being given to front metal surface pattern and texture etched front surfaces. A generalized processing matrix, containing co… more
Date: April 1, 1976
Creator: Coleman, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phase I of the Automated Array Assembly Task of the Low Cost Silicon Solar Array Project. Technical quarterly report No. 2. Motorola report No. 2258/2

Description: Phase I of the Automated Array Assembly Task, LCSSAP, is concerned with a comprehensive assessment of the improvements in existing technology that may be needed in order to develop, by 1985, an industrial capability for low cost, mass production of very durable silicon solar photovoltaic modules and arrays. Both experimental, literature, and theoretical sources are being utilized to evaluate efficient solar cell design criteria and individual and synergistic process effects on the cost effectiv… more
Date: July 1, 1976
Creator: Coleman, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase I of the Automated Array Assembly Task of the Low Cost Silicon Solar Array Project. Technical quarterly report No. 5. Motorola report No. 2258/6

Description: Studies on definition of solar cell design and solar cell variables, selection of processes and process sequences, definition of process variables, relationships between primary process variables and cell variables, selection of evaluation techniques, and primary variable evaluation have progressed during this period. Studies reported here include solar cell design and solar cell variables, a technical and economic discussion of limits on solar cell dimensions, the presentation of five process … more
Date: September 1, 1977
Creator: Coleman, M & Pryor, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phase 2 of the automated array assembly task of the low cost silicon solar array project. Technical quarterly report No. 1, September 27--December 31, 1977. Motorola report No. 2345/1

Description: A process sequence for manufacturing silicon solar cell modules was chosen for detailed study. This sequence, when automated, is expected to be capable of mass producing modules combining high efficiency, low cost, high reliability, and minimal consumed materials and waste disposal. Specific steps are (1) plasma etch of silicon; (2) apply wax etch stop (one side); (3) texture etch; remove etch stop; (4) silicon nitride deposition (vacuum CVD); (5) form metallization pattern in Si/sub 3/N/sub 4/… more
Date: January 1, 1977
Creator: Coleman, M. & Pryor, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phase I of the automated array assembly task of the low cost silicon solar array project. Technical quarterly report No. 6. Motorola report No. 2258/7

Description: A detailed cost evaluation is presented for solar cell module manufacturing. Emphasis in this analysis is applied to a critical appraisal of near term technology for application to the intermediate (1982) goal of $2.00/watt. The approach used in this cost analysis is to pursue a systematic examination of each of its many parts, and then to apply these parts to a final cost projection. In this approach, significant detail is generated; this is done in order to permit determination of the sensiti… more
Date: October 1, 1977
Creator: Grenon, L A & Coleman, M G
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase 2 of the automated array assembly task of the Low-Cost Silicon Solar Array Project. Technical quarterly report No. 5, July 1-September 30, 1979

Description: Ion implantation, metallization, and plasma pattern etching of silicon nitride tasks are highlighted. Experiments were performed to evaluate solar cells formed by simulated unanalyzed beam ion implantation, comparing these cells with analyzed beam implanted cells. Plasma patterning of silicon nitride with mechanical masks has been improved, primarily through equipment modifications. Finally, nickel and copper plating have been performed on solar cells, demonstrating feasibility of this base-met… more
Date: January 1, 1979
Creator: Coleman, M. G.; Pryor, R. A. & Sparks, T. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase 2 of the automated array assembly task of the low-cost silicon solar array project. Technical quarterly report No. 4, April 1-June 30, 1979

Description: During this period, all tasks progressed according to scheduled plans. This report highlights the process verification efforts, ion implantation investigations, plasma etching, and cost factors in the metallization processes. Completed modules were delivered to JPL to demonstrate the process sequence. A surface film has been observed on ion implanted wafers which was tentatively been associated with break-down of the vacuum pump oil during implantation. A baseline process for plasma patterning … more
Date: January 1, 1979
Creator: Coleman, M. G.; Pryor, R. A. & Sparks, T. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies and testing of antireflective (AR) coatings for soda-lime glass. Final report

Description: Experimental results on this feasibility study to establish processes for producing antireflection films on glass coverings for encapsulated solar cells are very encouraging. Efforts have been concentrated in three areas: acid etching of glass, plasma etching of glass, and acid development of sodium silicate films on glass. The best transmission to date has been achieved through the acid etching technique, while the most durable films have been produced from development of sodium silicate films… more
Date: May 1, 1978
Creator: Pastirik, E. M.; Sparks, T. G. & Coleman, M. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New Tools for the site-specific attachment of proteins to surface

Description: Protein microarrays in which proteins are immobilized to a solid surface are ideal reagents for high-throughput experiments that require very small amounts of analyte. Such protein microarrays ('protein chips') can be used very efficiently to analyze all kind of protein interactions en masse. Although a variety of methods are available for attaching proteins on solid surfaces. Most of them rely on non-specific adsorption methods or on the reaction of chemical groups within proteins (mainly, ami… more
Date: June 17, 2005
Creator: Camarero, J A; Kwon, Y & Coleman, M A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New Tools for the site-specific attachment of proteins to surface

Description: Protein microarrays in which proteins are immobilized to a solid surface are ideal reagents for high-throughput experiments that require very small amounts of analyte. Such protein microarrays (''protein chips'') can be used very efficiently to analyze all kind of protein interactions en masse. Although a variety of methods are available for attaching proteins on solid surfaces. Most of them rely on non-specific adsorption methods or on the reaction of chemical groups within proteins (mainly, a… more
Date: June 27, 2006
Creator: Kwon, Y; Coleman, M A & Camarero, J A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of a Chemoenzymatic-like and Photoswitchable Method for the Ordered Attachment of Proteins to Surfaces

Description: Protein arrays are the best tool for the rapid analysis of a whole proteome thus helping to identify all the protein/protein interactions in a living cell and they can also be used as powerful biosensors. The objective of this proposal is to develop a new entropically activated ligation method based in the naturally occurring protein trans-splicing process. This method will be used for the generation of spatially addressable arrays of multiple protein components by standard photolithographic te… more
Date: February 11, 2005
Creator: Camarero, J A; Kwon, Y & Coleman, M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Selective Immobilization of Proteins onto Solid Supports Through Split-Intein Mediated Protein Trans-Splicing

Description: Protein microarrays have emerged as important tools for screening protein-protein interactions and hold great potential for various applications including proteomics research, drug discovery, and diagnostics. This work describes a novel method for the traceless immobilization of proteins to a solid support through split-intein mediated protein trans-splicing. This method has been successfully used for the immobilization of biologically active proteins from very diluted samples ({approx}1{micro}… more
Date: August 23, 2005
Creator: Kwon, Y; Coleman, M A & Camarero, J A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Gene recovery microdissection (GRM) a process for producing chromosome region-specific libraries of expressed genes

Description: Gene Recovery Microdissection (GRM) is a unique and cost-effective process for producing chromosome region-specific libraries of expressed genes. It accelerates the pace, reduces the cost, and extends the capabilities of functional genomic research, the means by which scientists will put to life-saving, life-enhancing use their knowledge of any plant or animal genome.
Date: February 8, 2001
Creator: Christian, A T; Coleman, M A & Tucker, J D
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase 2 of the automated array assembly task of the Low-Cost Silicon Solar Array Project. Technical quarterly report No. 6, 1 October 1979-31 December 1979

Description: The ion implantation, metallization, and plasma etching processes are highlighted. Replacement of the hydrocarbon vacuum pump oils in the ion implanter with perfluorinated polyether pump oils has decreased, but not eliminated the formation of a carbonaceous surface layer on implanted wafers. Simulated unanalyzed beam ion implantation of boron for p-on-n cell fabrication has shown preliminary favorable results, showing better performance than control analyzed beam boron implants. An ion milling … more
Date: January 1, 1979
Creator: Coleman, M. G.; Pryor, R. A.; Sparks, T. G. & Saltzman, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase I of the automated array assembly task of the low cost silicon solar array project. Annual technical report. Motorola report No. 2258/4

Description: Work performed to analyze, both technically and economically, the state of technology readiness for the automated production of solar cells and modules is compiled and reviewed critically. The long-term objective solar module characteristics include a selling price of less than $.50/peak watt and a mean-time-before-failure (MTBF) of 20 years in any terrestrial environment. While efficiency is important to attaining the cost goal, it is a most significant factor in array economics; accordingly, … more
Date: February 1, 1977
Creator: Coleman, M. G.; Pryor, R. A.; Grenon, L. A. & Lesk, I.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase 2 of the Automated Array Assembly Task of the Low-Cost Silicon Solar Array Project: Annual Report

Description: This report presents the results of investigations and analyses of an advanced process sequence for manufacturing high efficiency solar cells and modules in a cost-effective manner. The entire process sequence is presented and discussed step by step. Emphasis is on process simplicity and minimizing consumed materials. The process sequence incorporates texture etching, plasma processes for damage removal and patterning, ion implantation, low pressure silicon nitride deposition, and plated metal.… more
Date: November 1, 1978
Creator: Coleman, M. G.; Grenon, L. P.; Pastirik, E. M.; Pryor, R. A. & Sparks, T. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase 2 of the automated array assembly task of the low-cost silicon solar array project. Final report, 1 April 1979-31 March 1980

Description: Several specific processing steps, as part of a total process sequence for manufacturing silicon solar cells, were studied during this contract. Ion implantation has been identified as the Motorola preferred process step for impurity doping. Unanalyzed beam ion implantation has been shown to have major cost advantages over analyzed beam implantation. Further, high quality cells have been fabricated using a high current unanalyzed beam. Mechanically masked plasma patterning of silicon nitride ha… more
Date: January 1, 1980
Creator: Coleman, M. G.; Pryor, R. A.; Sparks, T. G.; Legge, R. M. & Saltzman, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fertilization increases the risk of loblolly pine to ice storm damage.

Description: Winter storms resulting in substantial ice accumulation occur with periodic frequency in the southeastern United States and they have potential to severely damage softwood plantations. Loblolly pine is one of the most important crop tree species in this region and a combined understanding of initial damage and subsequent growth and recovery may allow for more productive utilization of these stands following severe ice storms. In January 2004 a severe ice storm deposited approximately 2 cm of ic… more
Date: August 1, 2005
Creator: Aubrey, D.P.; Coleman, M.D. & D.R., Coyle
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Chemoselective Attachment of Biologically Active Proteins to Surfaces by Native Chemical Ligation

Description: The present work describes our ongoing efforts towards the creation of micro and nanoscaled ordered arrays of protein covalently attached to site-specific chemical linkers patterned by different microlithographic techniques. We present a new and efficient solid-phase approach for the synthesis of chemically modified long alkyl-thiols. These compounds can be used to introduce chemoselective reacting groups onto silicon-based surfaces. We show that these modified thiols can be used for creating n… more
Date: November 22, 2003
Creator: Cheung, C L; De Yoreo, J. J.; Coleman, M. & Camarero, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DRIS analysis identifies a common potassium imbalance in sweetgum plantations.

Description: DRIS (Diagnosis and Recommendation Integrated System) analysis was applied to fast-growing sweetgum (Liquidambar styraciflua L.) plantations in the southeast United States as a tool for nutrient diagnosis and fertilizer recommendations. First, standard foliar nutrient ratios for nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) were established using high-yield stands from a region wide sweetgum fertilization study. DRIS indices were then calculated for the low-yield… more
Date: January 1, 2003
Creator: Coleman, M., D.; Chang, S., X. & Robison, D.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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