Light emitting material and light emitting device using the same
    86.
    发明专利
    Light emitting material and light emitting device using the same 有权
    使用其的发光材料和发光装置

    公开(公告)号:JP2005126686A

    公开(公告)日:2005-05-19

    申请号:JP2004264236

    申请日:2004-09-10

    摘要: PROBLEM TO BE SOLVED: To provide a light emitting material which comprises a conjugated polymer and a triplet light emitting compound and is capable of giving a light emitting device excellent in light emitting efficiency, when it is applied to a light emitting layer thereof. SOLUTION: The light emitting material comprises an aromatic ring-containing conjugated polymer (A) in its main chain and the triplet light emitting compound (B) in the principle chain, and in the polymer (A) the difference of energy between a vacuum level and a ground state LUMO level is ≥1.3 eV. The light emitting material satisfies a (condition 1) and/or a (condition 2). The (condition 1) is that, energy of the polymer (A) at a ground state (ES A0 ), an energy of the polymer (A) at a minimum excitation triplet state (ET A ), an energy of the compound (B) at a ground state (ES B0 ) and an energy of the polymer (B) at a minimum excitation triplet state (ET B ) satisfy the followings: ET A -ES A0 >ET B -ES B0 (Eq1). The (condition 2) is that, the ratio of (PL A ) a PL (photoluminescense) intensity of the polymer (A) to (PL B ) a PL intensity of the compound (B) PL A /PL B is ≤0.8. COPYRIGHT: (C)2005,JPO&NCIPI

    摘要翻译: 解决的问题:提供一种包含共轭聚合物和三重态发光性化合物的发光材料,并且能够提供发光效率优异的发光装置,当其被施加到其发光层时 。 解决方案:发光材料在其主链中包含含芳环的共轭聚合物(A)和原料链中的三重态发光化合物(B),并且在聚合物(A)中, 真空度和基态LUMO电平≥1.3eV。 发光材料满足(条件1)和/或a(条件2)。 (条件1)是在基态(ES A0 )下的聚合物(A)的能量,聚合物(A)在最小激发三重态下的能量(ET A ),处于基态的化合物(B)的能量(ES B0 )和聚合物(B)的能量在最小激发三线态(ET B )满足以下条件:ET A -ES A0 > ET B EQ1)。 (条件2)是聚合物(A)与(PL B )的PL(光致密度)强度(PL A )的PL强度 化合物(B)PL A / SB> B ≤0.8。 版权所有(C)2005,JPO&NCIPI