Download or read book Development of Polycrystal GaAs Solar Cells written by Rockwell International. Electronics Research Center and published by . This book was released on 1979 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Polycrystal GaAs Solar Cells written by Rockwell International. Electronics Research Center and published by . This book was released on 1979 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Polycrystal GaAs Solar Cells written by D. L. Miller and published by . This book was released on 1981 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Polycrystal GaAs Solar Cells Quarterly Technical Progress Report No 3 August 1 1979 October 30 1979 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress at Rockwell International, Cornell University, and North Carolina A and T State University on the development of thin film polycrystal GaAs solar cells with a 10% conversion efficiency is described. Highlights include the growth of Ge on Fe substrates and the investigation of various grain boundary passivation schemes. (WHK).

Download or read book Development of Polycrystal GaAs Solar Cells written by Rockwell International. Electronics Research Center and published by . This book was released on 1979 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of High Efficiency GaAs Polycrystal Solar Cells written by and published by . This book was released on 1978-07 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Polycrystal GaAs Solar Cells Quarterly Technical Progress Report No 2 for May 1 July 31 1979 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigation of grain boundaries in GaAs, growth of small-grained GaAs, and solar cell fabrication on small-grained material continued this quarter. Some highlights were the fabrication of MS cells of small-grained GaAs grown on Mo, the fabrication of MIS cells using spin-on oxides, and the determination of interface state density at a high-resistance grain boundary. Initial measurements show that series resistance and shunt leakage seriously degrade the performance of cells made from small-grain polycrystal MBE GaAs, leading to efficiencies less than 1%.

Download or read book Development of Polycrystal GaAs Solar Cells written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Polycrystal GaAs Solar Cells written by and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of High Efficiency GaAs Polycrystal Solar Cells Quarterly Technical and Topical Report No 2 24 April Oct 1978 23 July 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this program are to develop a thin film polycrystal GaAs solar cell technology with the potential of yielding cells with 12 to 15% efficiency and to develop thin film growth techniques which are compatible with the low cost production goal of $100 to 300/kW peak. Techniques conceived and initiated during the first quarter have seen initial application for measurements and fabrication of solar cells. The scanning Auger potential profiling and cathode-conductivity measurements and scanning laser system are beginning to yield useful results. Transient capacitance measurement of minority carrier lifetimes and Schottky barrier comparisons of LPE and MBE polycrystalline GaAs are described. Theoretical investigations of GaAs dislocations and polycrystalline solar cell modeling have begun. Oxidation of GaAs for MIS cell fabrication is described, and promising values reported for initial MIS single crystal solar cell performance.

Download or read book Development of Polycrystal GaAs Solar Cells Quarterly Technical Progress Report No 1 January 15 April 30 1979 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to develop a thin film GaAs solar cell technology with the potential of yielding cells with 12 to 15% efficiency and to develop thin film growth techniques which are compatible with the low cost production goal of $500/kW-peak. Progress is reported on a study of junction formation in large grain polycrystal GaAs; characterization of the electronic properties of polycrystal GaAs grown by MBE on low cost foreign substrates; optimizing the structure of AlGaAs-GaAs heterojunction Schottky barrier solar cells; and a variety of grain boundary measurements, including Scanning Light Microscopy (SLM), Deep Level Transient Spectroscopy (DLTS), SIMS, and temperature dependent resistivity.

Download or read book Development of High Efficiency Solar Cells written by D. L. Miller and published by . This book was released on 1979 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High efficiency GaAs Solar Cells on Polycrystalline Ge Substrates written by Rama Venkatasubramanian and published by . This book was released on 1998 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes work performed by Research Triangle Institute (RTI) under this subcontract. The objective of this program was to further improve on the performance of GaAs solar cells on poly-Ge substrates. Material and device issues related to the development of GaAs solar cells on poly-Ge substrates were addressed. Key material physics issues include the use of Group-VI dopant, specifically Se, to passivate the grain boundaries in the n-GaAs base to achieve large Jsc values. Device-structure optimization studies led RTI researchers to achieve an AM1.5 efficiency of ~20% for a 4-cm2 GaAs cell and an efficiency of ~21% for a 0.25-cm2 cell on sub-mm grain-size poly-Ge substrates. Key device physics issues include understanding of the dark-current reduction mechanism with an undoped spacer at the p+-n depletion layer. The successful demonstration of high-efficiency GaAs cells on sub-mm grain-size poly-Ge substrates motivated researchers to develop high-quality GaAs materials on lower-cost substrates such as glass and moly foils. They achieved a best minority-carrier lifetime of 0.41 ns in an n-GaAs thin-film on moly. The role of Group VI dopant in the possible passsivation of grain boundaries has been studied in GaAs films on moly foils.

Download or read book Processing of Polycrystalline GaAs Solar Cells written by Rémy Christian de Bernardy-Sigoyer and published by . This book was released on 1976 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Silicon Recrystallization and Thin film Solar Cell Processes written by Spire Corporation and published by . This book was released on 1979 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solar Energy Update written by and published by . This book was released on 1981 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book GaAs Solar Cell Development written by A. Caon and published by . This book was released on 1991 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: