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US 12,571,778 B2Granted
Method for analyzing deuterated compounds, method for selecting deuterated compound for manufacturing device, and method for manufacturing electronic device
AssigneeLG Chem, Ltd.
InventorsKiho Seo, Byung Hyun Park, Byoung Hyoun Kim, Su Youn Han
Life of this patent
Estimating the term…
Abstract
The present specification relates to a method for analyzing a deuterated compound by chromatography, and manufacturing an organic light emitting device using a deuterated compound selected based on the analyzed data.
Claims7
A method for manufacturing an electronic device, the method comprising:
- separating a sample including a deuterated compound by chromatography, and then deriving a mass chromatogram for each isotope having a different mass number obtained by a mass analysis;
- calculating an isotope content for each mass number of the deuterated compound based on an area of the obtained mass chromatogram;
- converting the calculated isotope content for the each mass number to a substitution ratio by the number of deuterium through Equation 1;
- evaluating a lifetime of a test device manufactured using the deuterated compound having the substitution ratio by the number of deuterium analyzed;
- and
- manufacturing an electronic device by including the deuterated compound having the evaluated lifetime greater than or equal to a reference value in one or more organic material layers,
- Substitution
-
- ratio
-
- by
-
- the
-
- number
-
- of
-
- deuterium
-
- (
- %
- )
- =
- [
- Equation
-
- 1
- ]
- Isotope
-
- content
-
- for
-
- each
-
- mass
- number
-
- (
- %
- )
- ×
- Number
-
- of
-
- deuterium
- Average
-
- number
-
- of
-
- deuterium
-
- substitution
- Average
-
- number
-
- of
-
- deuterium
-
- substitution
- =
- [
- Equation
-
- 2
- ]
- Sum
-
- of
-
- products
-
- of
-
- isotope
-
- content
-
- for
- each
-
- mass
-
- number
-
- (
- %
- )
-
- and
-
- number
-
- of
- deuterium
-
- for
-
- each
-
- mass
-
- number
- 100
- wherein, in Equation 1 and Equation 2,
- the number of deuterium means the number of deuterium for the each mass number of the deuterated compound;
- and
- the average number of deuterium substitution is a value calculated from Equation 2.
112 more elements
Dependencies are inferred from the claim text.