CHARGE-TRANSPORTING VARNISH |
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| 申请号 | EP15767949 | 申请日 | 2015-03-24 | 公开(公告)号 | EP3124563A4 | 公开(公告)日 | 2018-01-03 |
| 申请人 | NISSAN CHEMICAL IND LTD; | 发明人 | OTANI NAOKI; OTA HIROFUMI; | ||||
| 摘要 | This charge-transporting varnish includes: a fluorine-containing charge-transporting substance; a non-fluorine-containing charge-transporting substance; a dopant substance comprising a heteropoly acid; and an organic solvent. The fluorine-containing charge-transporting substance is a polymer which has a weight average molecular weight of 500-200,000, and which is obtained by condensing: at least one compound selected from triarylamine compounds and tetraarylbenzidine compounds; a tetraarylbenzidine compound having at least one aryl group substituted with an alkoxy group which may include ether bonds; a fluorine-containing aryl aldehyde compound; and a fluorene derivative having a carbonyl group. The non-fluorine-containing charge-transporting substance is an oligoaniline compound. The charge-transporting varnish provides a thin film with which an organic electroluminescent element exhibiting excellent luminance characteristics can be achieved, even in cases when employed as a single layer in a state of being provided between and in contact with a positive electrode and a light-emission layer. | ||||||
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