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公开(公告)号：JP2000294374A
公开(公告)日：2000-10-20
申请号：JP10454199
申请日：1999-04-12
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KAIDO AKIRA , ICHINO YOSHIAKI , TAKADA TOKUYUKI , TANIGAKI NOBUTAKA , MINAMI SHINJI , YATSUSE KIYOSHI , TANABE GIICHI , YOSHIDA MASARU , YOKOGAWA SHINOBU , SAKURAI HIDEKI
Abstract: PROBLEM TO BE SOLVED: To obtain a light source capable of providing the polarized luminescence by forming a first polysilane film on a transparent anode plate by using solvent insoluble polysilane, forming a second polysilane film on the first polysilane film by using a solvent soluble polysilane, and mounting a cathode plate on the second polysilane film. SOLUTION: A polarized luminescence EL element comprises a first polysilane orientation film 2 oriented by a mechanical deposition method and formed on a transparent anode plate 1, a second polysilane orientation film 3 orientated by an epitaxial growing and formed on the first polysilane orientation film 2, and further a cathode plate 4 formed on the second polysilane orientation film 3. By mounting a hole blocking layer 5 between the second polysilane orientation film 3 and the cathode plate 4, the flowing of positive charge to the cathode can be prevented, and the characteristic of the EL element can be further stabilized. By combining two kinds of polysilane orientation films, an uniform orientation film is formed in the element, and the minimized EL element of high efficiency can be provided.
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公开(公告)号：JPH11140088A
公开(公告)日：1999-05-25
申请号：JP30510097
申请日：1997-11-07
Applicant: AGENCY IND SCIENCE TECHN
Inventor： YATABE TETSUO , OKUMOTO HAJIME , KAIDO AKIRA , TANABE GIICHI , KANEIWA KENJI , SAKURAI HIDEKI
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound useful for a synthetic raw material of a liquid crystal compound exhibiting a liquid crystal state in the vicinity of a room temperature by a reaction of a dihalooligosilane compound or a dialkoxyoligosilane compound with dimethylphenyllithium. SOLUTION: This α,ω-disubstituted permethyloligosilane compound is a compound of formula I [R is a 2-6C alkyl or phenyl; (m) is 9-12 when R is an alkyl group, and 7-12 when R is phenyl group], (e.g.; 1,8-diphenylpermethyloctasilane), and useful as a synthetic intermediate for a liquid crystal compound exhibiting the liquid crystal state in the vicinity of a room temperature. The compound is obtained by reacting a dihalooligosilane compound or a dialkoxyoligosilane compound with dimethylphenylsilyllithium expressed by formula II, or reacting a reaction product of an α,ω-diphenylpermethyloligosilane compound with trifluoromethanesulfonic acid, with an alkylmetal or a halogenated alkylmagnesium.
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公开(公告)号：JP2000128888A
公开(公告)日：2000-05-09
申请号：JP28504599
申请日：1999-10-06
Applicant: AGENCY IND SCIENCE TECHN
Inventor： YATABE TETSUO , OKUMOTO HAJIME , KAIDO AKIRA , TANABE GIICHI , KANEIWA KENJI , SAKURAI HIDEKI
Abstract: PROBLEM TO BE SOLVED: To obtain a new compound useful as a synthetic intermediate for an α,ω-dialkyl-substituted permethyloligosilane liquid crystal compound having the low transition temperature to a liquid crystal, and a wide temperature range of the liquid crystal state. SOLUTION: This new compound is the one of formula I (m is 7-12), e.g. 1,8-diphenylpermethyloctasilane. The compound of formula I in which M is 7 or 8 is obtained by dropping a solution of dimethylphenylsilyllithium of formula III in a solvent (preferably tetrahydrofuran)into a solution of a dichlorooligosilane compound of formula II (p is 5 or 6) in a solvent (preferably hexane), normally stirring the obtained solution for 1-10 min to react the compounds. The compound of formula III in an amount of 2 mol is preferably used based on 1 mol compound of formula II. The solution of the compound of formula II is ordinary used by cooling the solution to 4-20 to 20 deg.C, and the temperature of the reaction liquid is preferably regulated so as not to over the room temperature. The dropping time is normally 10-50 min.
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