Luminescent thin film, luminescent multilayered film, and organic electroluminescent device, and production method therefor
AssigneeKonica Minolta, Inc.
InventorsYuta Nakamura, Satoru Inoue
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Abstract
The present invention addresses the problem of providing: a luminescent thin film, a luminescent multilayered film, and an organic electroluminescent element that have luminescence properties with excellent storage stability in atmospheric air; and a production method therefor. This luminescent thin film contains a luminescent compound A, and is characterized by containing 0.0001 mass % or more of an oxide B of luminescent compound A in terms of the luminescent compound A.
Claims19
A luminescent thin film comprising a luminescent compound A, wherein the luminescent thin film contains 0.0001 mass % or more of an oxide B of the luminescent compound A with respect to the luminescent compound A,
- the luminescent compound A is a phosphorescent compound, and
- a molecular weight of the oxide B satisfies the following Equation (1),
- Mw(B)=Mw(A)+(16m+18n) Equation (1):
- wherein Mw(A) represents a molecular weight of the luminescent compound A, Mw(B) represents a molecular weight of the oxide B, m and n each represent 0 or an integer, respectively, provided that m+n≥1.
Dependencies are inferred from the claim text.