申请人:HARADA Shigeyuki
公开号:US20120032115A1
公开(公告)日:2012-02-09
A light emitting device having a substrate and a luminous layer provided overlying the substrate, which includes a semiconductor nanocrystal to which a carbazole derivative is coordination-bonded or attached, the carbazole derivative having aromatic rings of a compound represented by the chemical structure 1 having one to three substitution groups:
where Ar
1
and Ar
2
independently represent substituted or non-substituted aryl groups that may share a linkage to form a ring with a benzene ring, heterocyclic groups, and hydrogen atoms and Ar
3
represents a substituted or non-substituted aryl group, the one to three substitution groups represented by the chemical structure 2:
—X—Y—Z Chemical Structure 2
where X represents a methylene group, a carbonyloxy group, an oxycarbonyl group, a carbonyl group, an oxygen atom, and a sulfur atom, Y represents a substituted or non-substituted alkylene group, and Z represents a carboxyl group, a hydroxyl group, and a thiol group.
具有基板和位于基板上方的发光层的发光装置,其中发光层包括半导体纳米晶体,该半导体纳米晶体与联配或附加有一种咔唑衍生物,该咔唑衍生物具有化学结构式1所表示的化合物的芳香环,该化合物具有一至三个取代基:其中,Ar1和Ar2独立地表示取代或非取代芳基,可能与苯环共享连接以形成环,杂环基和氢原子,Ar3表示取代或非取代芳基,化学结构式2表示的一至三个取代基如下:—X—Y—Z 化学结构式2其中,X表示甲基基团、羰基氧基团、氧羰基基团、羰基基团、氧原子和硫原子,Y表示取代或非取代的烷基基团,Z表示羧基、羟基和硫醇基。