Color-Tunable, Excitation-Dependent, and Time-Dependent Afterglows from Pure Organic Amorphous Polymers

被引：265

作者：

Dou, Xueyu ^{[1
,2
]}

Zhu, Tianwen ^{[2
]}

Wang, Zhengshuo ^{[1
,2
]}

Sun, Wei ^{[3
]}

Lai, Yueying ^{[2
]}

Sui, Kunyan ^{[1
]}

Tan, Yeqiang ^{[1
]}

Zhang, Yongming ^{[2
]}

Yuan, Wang Zhang ^{[2
]}

机构：

[1] Qingdao Univ, Coll Mat Sci & Engn, State Key Lab Biofibers & Ecotext, Collaborat Innovat Ctr Marine Biobased Fiber & Ec, 308 Ningxia Rd, Qingdao 266071, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Frontiers Sci Ctr Transformat Mol, Shanghai Key Lab Elect Insulat & Thermal Aging, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[3] Shanghai Jiao Tong Univ, Shanghai Gen Hosp, Dept Orthopaed, Shanghai 200240, Peoples R China

来源：

ADVANCED MATERIALS | 2020年 / 32卷 / 47期

基金：

上海市自然科学基金; 中国国家自然科学基金;

关键词：

amorphous polymers; excitation-dependent afterglows; film-forming ability; persistent room-temperature phosphorescence; time-dependent afterglows; ROOM-TEMPERATURE PHOSPHORESCENCE; ACHIEVING PERSISTENT; EMISSION; DESIGN;

D O I：

10.1002/adma.202004768

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Achieving persistent room-temperature phosphorescence (p-RTP), particularly those of tunable full-colors, from pure organic amorphous polymers is attractive but challenging. Particularly, those with tunable multicolorp-RTP in response to excitation wavelength and time are highly important but both fundamentally and technically underexplored. Here, a facile and general strategy toward color-tunablep-RTP from blue to orange-red based on amidation grafting of luminophores onto sodium alginate (SA) chains, resulting in amorphous polymers with distinctp-RTP and even impressively excitation-dependent and time-dependent afterglows is reported.p-RTP is associated with the unique semi-rigidified SA chains, effective hydrogen bonding network, and oxygen barrier properties of SA, whereas excitation-dependent and time-dependent afterglows should stem from the formation of diversifiedp-RTP emissive species with comparable but different lifetimes. These results outline a rational strategy toward amorphous smart luminophores with colorful, excitation-dependent, and time-dependentp-RTP, excellent solution processability, and film-forming ability for versatile applications.

引用

页数：8

共 54 条

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