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COMPOSITION CONTAINING SEMICONDUCTOR ULTRAFINE PARTICLE AND PROCESS FOR PRODUCING THE SAME

外国特許コード F070001683
整理番号 F070001683
掲載日 2007年9月14日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2005JP018540
国際公開番号 WO 2006/054402
国際出願日 平成17年10月6日(2005.10.6)
国際公開日 平成18年5月26日(2006.5.26)
優先権データ
  • 特願2004-335432 (2004.11.19) JP
  • 特願2005-063334 (2005.3.8) JP
発明の名称 (英語) COMPOSITION CONTAINING SEMICONDUCTOR ULTRAFINE PARTICLE AND PROCESS FOR PRODUCING THE SAME
発明の概要(英語) It is intended to provide a liquid composition, or resin composition, containingsemiconductor ultrafine particles that is inexpensive and exhibits not onlyhigh luminescence intensity but also high luminescence stability. Cationicsemiconductor ultrafine particles composed of semiconductor ultrafine particleswith surfaces thereof covered with ionic molecules are synthesized in an aqueoussolution (S1), and the resultant aqueous solution is mixed with a hydrophobicionic liquid and agitated (S2,S4). Then, the water is separated from the ionicliquid, and substantially 100% of the cationic semiconductor ultrafine particlesare transferred from the water into the ionic liquid, so that an ionic liquid solutionof semiconductor ultrafine particles can be obtained by removing the upper-phasewater (S5 to S7). Although in that state as well the luminescence intensity ishigh and also the long-term luminescence stability under continuous irradiationof excitation light is high, further heating treatment is performed (S8), therebyattaining further enhancement of luminescence efficiency. By the use of an ionicliquid type monomer, a resin composition containing semiconductor ultrafineparticles can be obtained through polymerization.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • National University Corporation Nara Institute Of Science And Technology
  • 発明者(英語)
  • Kawai, Tsuyoshi
  • Nakashima, Takuya
国際特許分類(IPC)
指定国 AE AG AL AM AT AU AZ BA BB BE BF BG BJ BR BW BY BZ CA CF CG CH CI CM CN CO CR CU CY CZ DE DK DM DZ EC EE EG ES FI FR GA GB GD GE GH GM GN GQ GR GW HR HU ID IE IL IN IS IT JP KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MC MD MG MK ML MN MR MW MX MZ NA NE NG NI NL NO NZ OM PG PH PL PT RO RU SC SD SE SG SI SK SL SM SN SY SZ TD TG TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW
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