0191-9067/83 $3.00 + .00 Copyright ® 1984 SUNSAT Energy Council SPS GENERIC RESEARCH/TITLES AND ABSTRACTS Title: Photovoltaic industry and possible seeds -for SPS Solar Cells Source: Proceedings of the First ISAS Space Energy Symposium, Institute of Space & Astronautical Science, 4-6-1 Komaba, Meguro-ku, Tokyo 153 Japan, Jan. 28-29, 1982. (Paper No. 1-13) Authors: Hayashi, Shintaro; Onoe, Akira; Kato, Taketoshi; (Electron Device Engineering Laboratory, Toshiba Corporation) Keywords: solar cells, fabrication technology Abstract: Target of solar cell for SPS was compared to actual situation of solar cell industry. Among many items, cost and productivity are most difficult terms to be solved. Especially productivity of space cell may grow along with that of terrestrial cell, which is thought to increase according to the development of ATTACHMENT : low cost technology and cultivation of new application. It is not sufficient, however, for SPS but some epochmaking new technology must be added. For an example, fabrication of solar cell may be done in space. Of course there remains'many barriers to be overwhelmed. Title: History and future views on solar cell arrays of Japanese scientific sate 11 ites Source: Proceedings of the First ISAS Space Energy Symposium, Institute of Space & Astronautica1 Science, 4-6-1 Komaba, Meguro-ku, Tokyo 153, Japan, Jan. 28 29, 1982. (Paper No. I I I -1 ) Authors: Ushirokawa, Akio; Takahashi, Keiji; Kobata, Masahiko; (Institute of Space 6c Astronau t i cal Science) 6c Miyazaki, Takahide; Hama, Kazumor i ; Iwasaki, Kun i o; (NEC) Keywords: solar cells Abstract: In the area of the researches for space and astronautical science, the Institute of Space and Astronautical Science (ISAS) has been taking the leadership. Since launched the first Japanese satellite "OSUMI" into earth orbit in February 1970, ISAS has already successfully launched five test ATTACHMENT : satellites and seven scientific satellites from Kagoshima Space Center, and is now developing one test satellite, "MS-T5" and three scientific satellites, "ASTRO-B", "EXOS-C" and "PLANET-A". Classification of the power supply system on scientific satellites is shown in Fig.-l, and the characteristics of the solar cell power system are shown in Table-1. The first solar cell power system that successfully operated in space was launched in September 28, 1971, on board the first scientific satellite, "SHINSEI", the third Japanese earth satellite. Since then, the solar cells had been mounted on the exterior surface of the scientific satellites. Soon, however, to increase the available solar cell power, solar cell paddles were developed for advanced scientific satellites. The fourth test satellite "TANSEI-4" launched in 1986, was the first satellite with the paddles. Now, ISAS is developing 2x6 cm(cm) silicon solar cell and light weight substrate for "PLANET-A" which will be launched in 1985 to observe Comet Hailey. The solar cell arrays have many features such as high reliability, light weight, and high energy conversion efficiency, in comparison with the other power systems. Therefore, solar cell arrays will be continually used for many sAte11 i tes. Title: Development of silicon high efficiency solar cell for space application Source: Proceedings of the First ISAS Space Energy Symposium, Institute of Space 6c Astronautical Science, 4-6-1 Komaba, Meguro-ku, Tokyo 153, Japan, Jan. 28-29, 1982. (Paper No. I I 1-2) Authors: Matsuda, Sumio (National Space Development Agency of Japan) & Hirano, Taizo; Matsutani, Toshinobu; Kiyota, Yoshiharu; Saga, Tatsuo; (SHARP Corpor at i on ) Keywords: solar cells Abstract: Black cells showed the most excellent electrical performance for space operation among all kinds of solar cells in Japan. Black cells were developed to be used as space flight solar cells suitable for mass production and are consisted of 10 ohm-cm bulk silicon with textured surface, back surface field
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