Composition and light emitting device obtained by using the composition

Abstract

A composition which is useful for producing a light emitting device having excellent luminance life is provided. The composition contains a primary fluorinated alcohol represented by the formula (1), a secondary fluorinated alcohol represented by the formula (1′) and an electron injectable compound or an electron transportable compound, wherein the content of the secondary fluorinated alcohol is 0.01% by mass to 0.75% by mass with respect to the total content of the primary fluorinated alcohol and the secondary fluorinated alcohol: CnH2n−m+1FmOH  (1) Cn′H2n′−m′+1Fm′OH  (1′) In the formula (1), n represents an integer of 1 to 10, and m is an integer satisfying 1≤m≤2n+1. In the formula (1′), n′ represents an integer of 3 to 10, and m′ is an integer satisfying 1≤m′≤2n′+1.

Dependencies are inferred from the claim text.