Download or read book Applied Research Program on High Temperature Radiation Resistant Solar Cell Array written by RADIO CORP OF AMERICA PRINCETON N J DEFENSE ELECTRONIC PRODUCTS. and published by . This book was released on 1963 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Research Program on High Temperature Radiation Resistant Solar Cell Array written by Radio Corporation of America and published by . This book was released on 1963 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 780 cells was produced with efficiencies of up to 10% and with a mode effeciency of eight percent for the later units. Tests of the cells made at elevated temperatures and in high radiation environments have established the characteristics of the cells. The critical flux for the gallium arsenide cells equalled or exceeded that of silicon cells. Tests of cadmium sulfide cells were not judged sufficiently conclusive to establish the level of critical flux. Soldering techniques were developed and evaluated in terms of the effects upon finished cells. Thermal characteristics of the cells and panels were appraised in terms of orbital evaluation. Panel assembly techniques were developed and evaluated in terms of the electrical and mechanical considerations involved in integrating cells into panels. Investigation and fabrication of single-crystal, thin-film gallium arsenide cells were made. Evaluation of methods for depositing epitaxial films, techniques for producing the desired ''doping'' structure, and studies of the resultant photovoltaic and surface-contacting properties were made for thin-film GaAs. (Author).
Download or read book Applied Research Program on High Temperature Radiation Resistant Solar Cell Array written by RADIO CORP OF AMERICA PRINCETON N J DEFENSE ELECTRONIC PRODUCTS. and published by . This book was released on 1962 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Gallium arsenide cell development and fabrication; Array design and testing; Summary, Array design, Module design, Fixture design, Materials test and selection, Prototype panel, Radiation testing; Thin-film gallium arsenide investigation, Thin film diffused-junction solar cells, Thin-film grown-junction solar cells, Properties of evapora ted metallic contacts on GaAs, Analysis, Measurements.
Download or read book Appied Research Program on High Temperature Radiation Resistant Solar Cell Array written by Radio Corporation of America and published by . This book was released on 1963 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the program is the development of the technology necessary for the production of a high-temperature, radiation-resistant, solar-cell array in a configuration suitable to aerospace vehicles. This project includes (1) determination of the mechanical, thermal, optical, and electrical parameters of gallium arsenide (GaSs) cells, individually and as part of a panel; (2) evaluation of the performance of GaAs cells under the conditions of nuclear radiation encountered in an orbital environment, as compared with silicon (Si) and cadmium sulfide (CdS) cells in similar environments; (3) a feasibility study of thin-film GaAs; and (4) a document summarizing the work and containing recommendations for further research and development in this area. No cells were produced under the subject Contract during the period of this report. However, development work on GaAs cells has proceeded under another contract, and a discussion of the present status of the cells is included for completeness. A 51-module, 204-cell array was fabricated, tested, and delivered to the Air Force. Results of tests mad of GaAs and Si cells in actual orbital environments are reported in connection with radiation damage and the effects of various shielding material. Further investigation and fabrication were made of thin-film GaAs cells. A newly developed surface-barrier type was studied, as well as the customary p-n junction units. Studies were made of deposited-metal contacts to bulk single-crystal, grown single-crystal film, and polycrystalline film GaAs; electrical and photovoltaic characteristics of these metallic contacts are presented.
Download or read book Applied Research Program on High Temperature Radiation Resistant Solar Cell Array Volume i written by and published by . This book was released on 1963 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 780 cells was produced with efficien cies of up to 10% and with a mode effeciency of eight percent for the later units. Tests of the cells made at elevated temperatures and in high radiation environments have established the characteristics of the cells. The critical flux for the gallium arsenide cells equalled or ex ceeded that of silicon cells. Tests of cadmium sulfide cells were not judged sufficiently con clusive to establish the level of critical flux. Soldering techniques were developed and evaluated in terms of the effects upon finished cells. Thermal characteristics of the cells and panels were appraised in terms of orbital evaluation. Panel assembly techniques were developed and evaluated in terms of the electrical and mechani cal considerations involved in integrating cells into panels. Investigation and fabrication of single-crystal, thin-film gallium arsenide cells were made. Evaluation of methods for depositing epitaxial films, techniques for producing the desired ''doping'' structure, and studies of the resultant photovoltaic and surface-contacting properties were made for thin-film GaAs. (Author).
Download or read book Solar Energy written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Space radiation Effects on Solar cell Power Systems written by William C. Cooley and published by . This book was released on 1963 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared under contract for NASA by Exotech, Incorporated, Alexandria, Virginia, and reproduced photographically from copy supplied by the contractor.
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 2180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1964 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Keywords Index to U S Government Technical Reports written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Keywords Index to U S Government Technical Reports permuted Title Index written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Solar Energy written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1964 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
