LAYERED STRUCTURE

摘要

Disclosed is a layered structure including a first electrode and a second electrode, a light-emitting layer or a charge separation layer between the first electrode and the second electrode, and a layer containing a conjugated polymer compound between the light-emitting layer or the charge separation layer and the first electrode, wherein the conjugated polymer compound contains a repeating unit selected from the group consisting of a repeating unit represented by formula (1):
wherein Ar 1 represents a divalent aromatic group, R 1 represents a substituent group having a group represented by formula (2), Ar 1 may have a substituent group other than R 1 , and n1 represents an integer of 1 or more;
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-(R 2 ) c1 -(Q 1 ) n2 -Y 1 (M 1 ) a1 (Z 1 ) b1 €ƒ€ƒ€ƒ€ƒ€ƒ(2)
wherein R 2 represents a divalent aromatic group which may have a substituent group, Q 1 represents a divalent organic group which may have a substituent group, Y 1 represents a carbocation, an ammonium cation, a phosphonyl cation or a sulfonyl cation, M 1 represents F - , Cl - , Br - , I - , OH - , R a SO 3 - , R a COO - , ClO - , ClO 2 - , ClO 3 - , ClO 4 - , SCN - , CN - , NO 3 , SO 4 2- , HSO 4 - , PO 4 3- , HPO 4 2- , H 2 PO 4 - , BF 4 - or PF 6 - , Z 1 represents a metal ion or an ammonium ion which may have a substituent group, c1 represents 0 or 1, n2 represents an integer of 0 or more, provided that n2 is 0 when c1 is 0, a1 represents an integer of 1 or more, b1 represents an integer of 0 or more, a1 and b1 are selected so that the charge of the substituent group represented by formula (2) is 0, R a represents an alkyl group having 1 to 30 carbon atoms, which may have a substituent group, or an aryl group having 6 to 50 carbon atoms, which may have a substituent group.