TY - RPRT TI - FY 1979 Annual report on Sunshine Project results. Research and development of photovoltaic power generation systems (Research and development of vertically drawn ribbon crystals of silicon); 1979 nendo taiyoko hatsuden system no kenkyu kaihatsu seika hokokusho. Silicon tatehiki ribon kessho no kenkyu kaihatsu AB - The efforts in this fiscal year for development of methods for vertically drawing ribbon crystals of silicon are directed to the following items, in order to further improve the techniques for vertically drawing two or more ribbon crystals on a continuous basis, developed in the previous fiscal year: (1) tests of the drawing apparatus, developed in the previous fiscal year, to deepen the techniques for drawing the ribbon crystals, (2) modification of the above apparatus to further develop the apparatus for vertically drawing two or more ribbon crystals on a continuous basis, (3) comparison of drawing a single ribbon crystal, conducted separately, with drawing two or more ribbon crystals, to clarify the problems involved in the latter, and (4) basic investigations on the materials for the furnace internals exposed to high temperature, other than the carbon material used at present. The vertically drawn ribbon crystals of silicon is investigated, based on the results obtained in the previous fiscal year that ribbon crystal quality depends on impurities present therein, mainly for (1) quantitative analysis of the impurity elements present in the ribbon crystal, (2) relationship between impurity elements and characteristics of the solar cells made on a trial basis, and (3) investigations on local concentration of the impurity elements. (NEDO) AU - "NONE" KW - "14 SOLAR ENERGY" KW - "SUNSHINE PROJECT" KW - "PHOTOVOLTAIC POWER PLANTS" KW - "SOLAR CELLS" KW - "SILICON" KW - "RIBBON-TO-RIBBON METHOD" KW - "CRYSTAL GROWTH METHODS" KW - "IMPURITIES" KW - "QUANTITATIVE CHEMICAL ANALYSIS" DO - https://doi.org/ UR - https://www.osti.gov/etdeweb/servlets/purl/20094306 PB - CY - Japan PY - 1980 DA - 1980-03-01 LA - Japanese J2 - [] VL - C1 - New Energy and Industrial Technology Development Organization, Tokyo (Japan) C2 - C3 - JP-NEDO-0017914 C4 - C5 - Available to ETDE participating countries only(see www.etde.org); commercial reproduction prohibited; OSTI as DE20094306 L3 - Other Information: PBD: Mar 1980 ER -