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 Ar1 represents a divalent aromatic group, R1 represents a substituent group having a group represented by formula (2), Ar1 may have a substituent group other than R1, and n1 represents an integer of 1 or more; -(R2)c1-(Q1)n2-Y1(M1)a1(Z1)b1  (2) wherein R2 represents a divalent aromatic group which may have a substituent group, Q1 represents a divalent organic group which may have a substituent group, Y1 represents a carbocation, an ammonium cation, a phosphonyl cation or a sulfonyl cation, M1 represents F−, Cl−, Br−, I−, OH−, RaSO3−, RaCOO−, ClO−, ClO2−, ClO3−, ClO4−, SCN−, CN−, NO3−, SO42−, HSO4−, PO43−, HPO42−, H2PO4−, BF4− or PF6−, Z1 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, Ra 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.