CHARGE-TRANSPORTING VARNISH AND ORGANIC ELECTRO- LUMINESCENT DEVICES MADE BY USING THE SAME
申请人:Nissan Chemical Industries, Ltd.
公开号:EP1728827A1
公开(公告)日:2006-12-06
A charge-transporting varnish containing either a charge-transporting substance consisting of a charge-transporting oligoaniline or a charge-transporting organic material consisting of the charge-transporting substance and a charge-accepting dopant and at least one polymer selected from among polyimides and polyimide precursors; and charge-transporting thin films and organic EL devices, made by using the varnish. The varnish can give thin films which little suffer from defects and have high uniformity and flatness and excellent mechanical strengths, heat resistance, and transparency. In particular, the varnish realizes excellent EL characteristics such as low driving voltage, high emission efficiency, and long service life, when used in organic EL devices.
一种电荷传输清漆,含有由电荷传输低聚苯胺组成的电荷传输物质或由电荷传输物质和电荷接受掺杂剂组成的电荷传输有机材料,以及至少一种从聚酰亚胺和聚酰亚胺前体中选出的聚合物;以及使用该清漆制成的电荷传输薄膜和有机电致发光器件。清漆可制成几乎没有缺陷、均匀度和平整度高、机械强度、耐热性和透明度优异的薄膜。特别是在用于有机 EL 器件时,清漆可实现低驱动电压、高发射效率和长使用寿命等优异的 EL 特性。