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公开(公告)号：US11411186B2
公开(公告)日：2022-08-09
申请号：US16587039
申请日：2019-09-29
Applicant: WuHan TianMa Micro-Electronics Co., Ltd.
Inventor： Longxin Pan , Zhengchuan Zhang , Fang Yuan , Kun Wang , Peng Wang
Abstract: A boron heterocyclic compound has a structure represented by Formula (I): in which L represents a single bond, a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted anthryl, and D is mainly selected from carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, or diarylamino and derivative groups thereof. In the boron heterocyclic compound, an acceptor unit is bonded through a boron heterocyclic SP3 linking moiety, which shortens the conjugation length, increases the energy level, and also further improves the thermodynamic stability of the molecule. In addition, the short conjugate axis reduces intramolecular charge transfer and narrows luminescence spectrum to some extent. The compound can be used as a TADF material. Since the light-emitting layer of the light-emitting device does not contain noble metals, the cost thereof can be greatly reduced.
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公开(公告)号：US20200381625A1
公开(公告)日：2020-12-03
申请号：US16588909
申请日：2019-09-30
Applicant: WuHan TianMa Micro-electronics CO.,LTD
Inventor： Kun Wang , Kui Wang , Longxin Pan , Xin Ke , Tiansheng Ye
Abstract: A compound, having a structure represented by Formula (I), in which L is selected from the group consisting of a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted pyridyl, a substituted or unsubstituted pyrimidinyl, and a substituted or unsubstituted pyrazinyl; and D is an electron donor and is selected from the group consisting of a substituted or unsubstituted phenyl, biphenyl, naphthyl, anthryl, phenanthryl, acenaphthylenyl, pyrenyl, perylenyl, fluorenyl, spirobifluorenyl, chrysenyl, benzophenanthrenyl, benzanthracenyl, fluoranthenyl, picenyl, furyl, benzofuryl, dibenzofuryl, thienyl, benzothienyl, dibenzothiophenyl, phenoxazinyl, phenazinyl, phenothiazinyl, thianthrenyl, carbazolyl, acridinyl, and diarylamino. The compound according to the present disclosure has the TADF property, and the triplet excitons, which are blocked in molecular transition of the conventional fluorescent material, can be used to emit light, thereby improving the efficiency of device.
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公开(公告)号：US20200028086A1
公开(公告)日：2020-01-23
申请号：US16587039
申请日：2019-09-29
Applicant: WuHan TianMa Micro-Electronics Co., Ltd.
Inventor： Longxin Pan , Zhengchuan Zhang , Fang Yuan , Kun Wang , Peng Wang
Abstract: A boron heterocyclic compound has a structure represented by Formula (I): in which L represents a single bond, a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted anthryl, and D is mainly selected from carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, or diarylamino and derivative groups thereof. In the boron heterocyclic compound, an acceptor unit is bonded through a boron heterocyclic SP3 linking moiety, which shortens the conjugation length, increases the energy level, and also further improves the thermodynamic stability of the molecule. In addition, the short conjugate axis reduces intramolecular charge transfer and narrows luminescence spectrum to some extent. The compound can be used as a TADF material. Since the light-emitting layer of the light-emitting device does not contain noble metals, the cost thereof can be greatly reduced.
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公开(公告)号：US11335863B2
公开(公告)日：2022-05-17
申请号：US16588909
申请日：2019-09-30
Applicant: WuHan TianMa Micro-electronics CO., LTD
Inventor： Kun Wang , Kui Wang , Longxin Pan , Xin Ke , Tiansheng Ye
Abstract: A compound, having a structure represented by Formula (I), in which L is selected from the group consisting of a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted pyridyl, a substituted or unsubstituted pyrimidinyl, and a substituted or unsubstituted pyrazinyl; and D is an electron donor and is selected from the group consisting of a substituted or unsubstituted phenyl, biphenyl, naphthyl, anthryl, phenanthryl, acenaphthylenyl, pyrenyl, perylenyl, fluorenyl, spirobifluorenyl, chrysenyl, benzophenanthrenyl, benzanthracenyl, fluoranthenyl, picenyl, furyl, benzofuryl, dibenzofuryl, thienyl, benzothienyl, dibenzothiophenyl, phenoxazinyl, phenazinyl, phenothiazinyl, thianthrenyl, carbazolyl, acridinyl, and diarylamino. The compound according to the present disclosure has the TADF property, and the triplet excitons, which are blocked in molecular transition of the conventional fluorescent material, can be used to emit light, thereby improving the efficiency of device.
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