Polyimide layer comprising functional material, device employing the same and method of manufacturing same device
申请人:Sony International (Europe) GmbH
公开号:EP1011154A1
公开(公告)日:2000-06-21
The invention relates to novel layers comprising polyimide and organic functional material such as hole transport material, electron transport material and/or emitter material having a glass transition temperature of higher than 80°C. The layers can be prepared by mixing the functional material with a polyimide precursor material, forming a thin film out of the mixture and converting said mixture into doped polyimide. Said doped polyimide layers can be used for the manufacture of electronic and optoelectronic devices such as e.g. light emitting devices. Due to the content of functional material, they can act as hole transport, electron transport or emitter layer. Moreover, the layers can be processed to have aligning properties for liquid crystals, thus allowing the manufacture of devices emitting polarized light. Furthermore, after conversion to doped polyimide, the layers are resistant to solvent treatment allowing the preparation of multilayers by successive coating and conversion cycles.
本发明涉及由聚酰亚胺和有机功能材料(如玻璃化转变温度高于 80°C 的空穴传输材料、电子传输材料和/或发射器材料)组成的新型层。可通过将功能材料与聚酰亚胺前体材料混合,在混合物中形成薄膜,并将混合物转化为掺杂聚酰亚胺来制备层。所述掺杂聚酰亚胺层可用于制造电子和光电设备,例如发光设备。由于含有功能材料,它们可以作为空穴传输层、电子传输层或发射层。此外,这些层经处理后可具有液晶的对准特性,从而可以制造出发射偏振光的设备。此外,在转化为掺杂聚酰亚胺后,这些层可耐受溶剂处理,从而可通过连续涂层和转化循环制备多层膜。