Fluorescent material and method for making the same
AssigneeDaxin Materials Corporation
InventorsKuo-Huai Kuo, Yu-Pu Wang, Fu-Shan Chen
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Abstract
A fluorescent material includes at least one fluorescent compound having a structure formula of ABXZY3-Z as defined in the specification, a plurality of NH3+ group-containing ions bound to the fluorescent compound through protonation of amine groups of an amine composition, and a plurality of COO− group-containing ions bound to the fluorescent compound through deprotonation of carboxyl groups of an acid composition. The amine composition has a total hydrogen bonding Hansen solubility parameter (TδH) ranges from 2.4 to 3.3 (cal/cm3)1/2, and the acid composition has a total polar Hansen solubility parameter (TδP) which is less than 1.4 (cal/cm3)1/2.
Claims13
A fluorescent material comprising:
- at least one fluorescent compound having a structure formula of ABXZY3-Z, where
- A is Cs, CH3NH3, or CH(NH2)2,
- B is Pb, Sn or Sr,
- X and Y are different atoms, and are independently selected from the group consisting of Cl, Br, and I, with the proviso that when one of X and Y is Cl, the other one of X and Y is not I, and
- 0≤Z≤3;
- a plurality of NH3+ group-containing ions which are the same or different ions, and which are made from protonation of an amine composition, said amine composition being composed of at least one type of amine group-containing compound, and having a total hydrogen bonding Hansen solubility parameter (TδH) which ranges from 2.4 to 3.3 (cal/cm3)1/2;
- and
- a plurality of COO− group-containing ions which are the same or different ions, and which are made from deprotonation of an acid composition, said acid composition being composed of at least one type of carboxyl group-containing compound, and having a total polar Hansen solubility parameter (TδP) which is less than 1.4 (cal/cm3)1/2,
- wherein said total hydrogen bonding Hansen solubility parameter (TδH) satisfies
- T
-
-
- δ
- H
- =
- ∑
- x
-
- W
- x
- ×
- δ
- H
- ,
- x
- where
- x is a number of the at least one type of said amine group-containing compound,
- Wx is a weight ratio of said amine group-containing compound based on the total weight of said amine composition, and
- δH,x is a hydrogen bonding Hansen solubility parameter of said amine group-containing compound;
- wherein said total polar Hansen solubility parameter (TδP) satisfies
- T
-
-
- δ
- P
- =
- ∑
- y
-
- W
- y
- ×
- δ
- P
- ,
- y
- where
- y is a number of the at least one type of said carboxyl group-containing compound,
- Wy is a weight ratio of said carboxyl group-containing compound based on the total weight of said acid composition, and
- δP,y is a polar Hansen solubility parameter of said carboxyl group-containing compound;
- and
- wherein said NH3+ group-containing ions and said COO− group-containing ions are bound to said fluorescent compound.
Dependencies are inferred from the claim text.