Patent ID: 11884853
Assignee: KYULUX, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  H  B | IPC B  C  H

Claim 13:
14. A nanoparticle conjugate comprising:
a quantum dot (QD); and
a thermally activated delayed fluorescence (TADF) molecule bound to the QD, wherein the TADF molecule comprises: at least one electron donor group (D group), an electron acceptor group (A group) bound to the at least one D group and a QD binding group, and the TADF molecule satisfies any one of the following conditions (A)-(D):
(A) the QD binding group is bound to the at least one D group, and the TADF molecule has the following general formula (I):

A-D-R1  (I)

where R1 is any one of a primary amine, a secondary amine, a nitrile, a nitroso, a nitro, a thiol, a phosphine, a phosphine oxide, an alkyl phosphonic acid, a hydroxyl, a ketone, an aldehyde, an ether, an ester, an epoxide, a carboxylate salt, a carboxylate ester, a carboxylic acid, a fluorine, a fluoroalkyl, a fluoroaryl, a sulfone, or a sulfoxide;
(B) the QD binding group is bound to the at least one D group, and the TADF molecule has the following general formula (II):

A-D-R2—R3  (II)

where R2 comprises any one of an substituted or unsubstituted C1-C24 alkyl chain, one or more of a substituted or an unsubstituted C3-C18 cycloalkyl, aryl or heteroaryl group, and R3 is any one of a primary amine, a secondary amine, a nitroso, a nitro, a nitrile, a thiol, a phosphine, a phosphine oxide, an alkyl phosphonic acid, a hydroxyl, a ketone, an aldehyde, an ether, an ester, an epoxide, a carboxylate salt, a carboxylate ester, a carboxylic acid, a fluorine, a fluoroalkyl, a fluoroaryl, a sulfone, or a sulfoxide;
(C) the QD binding group is bound to the A group, and the TADF molecule has the following general formula (III):

D-A-R4  (III)

where R4 is any one of a primary amine, a secondary amine, a nitrile, a nitroso, a nitro, a thiol, a phosphine, a phosphine oxide, an alkyl phosphonic acid, a hydroxyl, a ketone, an aldehyde, an ether, an ester, an epoxide, a carboxylate salt, a carboxylate ester, a carboxylic acid, a fluorine, a fluoroalkyl, a fluoroaryl, a sulfone, or a sulfoxide; and
(D) the QD binding group is bound to the A group, and the TADF molecule has the following general formula (IV):

D-A-R5—R6  (IV)

where R5 comprises any one of an substituted or unsubstituted C1-C24 alkyl chain, one or more of a substituted or an unsubstituted C3-C18 cycloalkyl, aryl or heteroaryl group, and R6 is any one of a primary amine, a secondary amine, a nitrile, a nitroso, a nitro, a thiol, a phosphine, a phosphine oxide, an alkyl phosphonic acid, a hydroxyl, a ketone, an aldehyde, an ether, an ester, an epoxide, a carboxylate salt, a carboxylate ester, a carboxylic acid, a fluorine, a fluoroalkyl, a fluoroaryl, a sulfone, or a sulfoxide.