POLYMER FOR ORGANIC ELECTROLUMINESCENT ELEMENTS AND ORGANIC ELECTROLUMINESCENT ELEMENT

WIPO Patent Application WO/2020/203203

A1

The present invention provides a polymer for organic electroluminescent elements, which has high luminous efficiency, and which is able to be applied to a wet process. This polymer for organic electroluminescent elements is used in at least one organic layer of an organic electroluminescent element that is obtained by stacking a positive electrode, one or more organic layers, and a negative electrode on a substrate; and this polymer for organic electroluminescent elements is characterized by containing a polymer which has a polyphenylene main chain represented by general formula (1), and which has thermally activated delayed fluorescence characteristics (TADF characteristics). (In the formula, x represents a phenylene group or linked phenylene groups; L represents a single bond, an aromatic hydrocarbon group or an aromatic heterocyclic group; A represents an aromatic hydrocarbon group, an aromatic heterocyclic group or linked aromatic groups; and (S1(A) – T1(A)) ≤ 0.50 (eV) is satisfied.)

HAYASHI KENTARO (JP)
INOUE MUNETOMO (JP)

PCT/JP2020/011319

October 08, 2020

March 16, 2020

Click for automatic bibliography generation  

NIPPON STEEL CHEMICAL & MAT CO LTD (JP)

C08G61/10; C09K11/06; H01L51/50; H05B33/10

WO2019004248A1	2019-01-03
WO2019004247A1	2019-01-03
WO2011070963A1	2011-06-16
WO2012150712A1	2012-11-08
WO2015002295A1	2015-01-08

JP2013053051W

2013-02-08

J. AM. CHEM. SOC., vol. 123, 2001, pages 4304
NATURE, vol. 492, 2012, pages 234
NATURE PHOTONICS, vol. 8, 2014, pages 326

SASAKI Kazuya et al. (JP)

View/Download PDF      PDF Help

Previous Patent: ORGANIC ELECTROLUMINESCENT ELEMENT

Next Patent: DRYING SYSTEM AND METHOD FOR MANUFACTURING COATED METAL PLATE