ORGANIC ELECTROLUMINESCENCE ELEMENT

WIPO Patent Application WO/2016/125750

A1

Disclosed is an organic electroluminescence (EL) element for which drive stability can be further improved. An organic EL element (1) according to one embodiment of the present invention has an anode (E1), a cathode (E2), and a light-emitting layer (13) disposed between the anode and the cathode, wherein: said element (1) is provided with a multilayered electron transport layer (14) provided between the light-emitting layer and the cathode; the multilayered electron transport layer (14) has an electron transport layer (14a) containing an electron transport material, and a light-emitting-layer-side mixed layer (14b) provided in contact with the light-emitting layer between the electron transport layer and the light-emitting layer, the light-emitting-layer-side mixed layer (14b) being thinner than the electron transport layer; and the light-emitting-layer-side mixed layer contains the electron transport material and an organometallic complex compound.

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MINAMOTO KAZUHIRO (JP)
IWASAKI MASATAKA (JP)
SEKIGUCHI YASUHIRO (JP)

PCT/JP2016/052947

August 11, 2016

February 01, 2016

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SUMITOMO CHEMICAL CO (JP)

H01L51/50

JP2011243979A	2011-12-01
JP2011508421A	2011-03-10
JP2006127986A	2006-05-18
US20130313527A1	2013-11-28
JP2008258603A	2008-10-23

HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)

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