Ultra-Long-Lived Red TADF-CDs: Solid-State Synthesis, Time-Dependent Phosphorescence Color And Luminescent Mechanism

doi:10.1002/adom.202302542

IMR OpenIR

	Ultra-Long-Lived Red TADF-CDs: Solid-State Synthesis, Time-Dependent Phosphorescence Color And Luminescent Mechanism
	Sun, Jie 1; Sun, Zhongqiao 1; Wang, Ziru 1,2; Wang, Nan 3; Han, Yide 1; Zhang, Lin 4; Zhang, Bingsen 2,5; Zhang, Xia 1
通讯作者	Zhang, Xia(xzhang@mail.neu.edu.cn)
	2024-01-02
发表期刊	ADVANCED OPTICAL MATERIALS
ISSN	2195-1071
页码	9
摘要	Constructing an ultra-long-lived red thermally activated delayed fluorescence carbon dots (TADF-CDs) with time-dependent phosphorescence colors (TDPC) in both solid and aqueous is still a challenge. Herein, a red TADF-CDs, constructed via. a modified solid-state pyrolysis strategy, show the phosphorescence emissions at 595, 670, and 725 nm with the afterglow lifetime longer than most of reported red TADF-materials. In addition, the resulting CDs trigger the TDPC activity while the emission colors changed from red to green both in solid state and in aqueous suspension. The synergistic effects of boron-hybridization in the seed CDs and the additional CO groups generated in urea-assisted pyrolysis, result in a stronger spin-orbit coupling (SOC) between the 1(n, pi) and the 3(pi, pi), the mitigated energy gap (Delta EST) and the non-radiative relaxations of triplet excited states. The TDPC performance endow the resulting TADF-CDs the usability in advance information security with enhanced-security-level encryption strategy. An ultra-long-lived red thermally activated delayed fluorescence carbon dots (TADF-CDs) with time-dependent phosphorescence colors (TDPC) activity are synthesized by solid-phase pyrolysis for the first time, which integrate the synergistic effects of boron-hybridization and the CO groups from urea, and represent a stronger spin-orbit coupling (SOC) and mitigated the energy gap (Delta EST), that render multiple encryption channels and be applicable for advanced dynamic data encryption.image
关键词	carbon dots luminescence mechanism solid-phase synthesis TADF time-dependent phosphorescence color
资助者	National Natural Science Foundation of China ; LiaoNing Science and Technology Development Foundation Guided by Central Government ; Postgraduate Education Reform Project of Liaoning Province
DOI	10.1002/adom.202302542
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; LiaoNing Science and Technology Development Foundation Guided by Central Government[2021JH6/10500141] ; Postgraduate Education Reform Project of Liaoning Province[202303] ; [21501023]
WOS研究方向	Materials Science ; Optics
WOS类目	Materials Science, Multidisciplinary ; Optics
WOS记录号	WOS:001134246800001
出版者	WILEY-V C H VERLAG GMBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183318
专题	中国科学院金属研究所
通讯作者	Zhang, Xia
作者单位	1.Northeastern Univ, Coll Sci, Dept Chem, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Northeastern Univ, Analyt & Testing Ctr, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 4.Northeastern Univ, Sch Mat Sci & Engn, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jie,Sun, Zhongqiao,Wang, Ziru,et al. Ultra-Long-Lived Red TADF-CDs: Solid-State Synthesis, Time-Dependent Phosphorescence Color And Luminescent Mechanism[J]. ADVANCED OPTICAL MATERIALS,2024:9.
APA	Sun, Jie.,Sun, Zhongqiao.,Wang, Ziru.,Wang, Nan.,Han, Yide.,...&Zhang, Xia.(2024).Ultra-Long-Lived Red TADF-CDs: Solid-State Synthesis, Time-Dependent Phosphorescence Color And Luminescent Mechanism.ADVANCED OPTICAL MATERIALS,9.
MLA	Sun, Jie,et al."Ultra-Long-Lived Red TADF-CDs: Solid-State Synthesis, Time-Dependent Phosphorescence Color And Luminescent Mechanism".ADVANCED OPTICAL MATERIALS (2024):9.