A novel and highly stable dual-emission carbon dots-based phosphor

被引：17

作者：

Cao, Mengmeng ^{[1
]}

Liu, Yunpeng ^{[1
]}

Zhu, Mengmeng ^{[1
]}

Xia, Jinfeng ^{[2
]}

Xuan, Tongtong ^{[3
]}

Jiang, Danyu ^{[2
]}

Zhou, Guohong ^{[2
]}

Li, Huili ^{[1
]}

机构：

[1] East China Normal Univ, Engn Res Ctr Nanophoton & Adv Instrument, Sch Phys & Elect Sci, Minist Educ, Shanghai 200241, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China

[3] Xiamen Univ, Coll Mat, Xiamen 361005, Fujian, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 873卷

关键词：

Carbon dots; Phosphors; Photoluminescence; CALCIUM HYDROXIDE; QUANTUM DOTS; PHOTOLUMINESCENCE; FLUORESCENCE; FACILE; LUMINESCENCE; NANODOTS; IONS; TUNE;

D O I：

10.1016/j.jallcom.2021.159819

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel green/red dual-emission carbon dots-based phosphor (named as GRCDs phosphor) was successfully prepared by introducing calcium hydroxide [Ca(OH)2] as matrix material mixed with green-emitting carbon dots (CDs) for the first time. The addition of Ca(OH)2 not only prevents fluorescent self-quenching caused by polymerization of CDs in the solid state but also promotes the red emission of CDs due to abundant functional groups on the surface. Furthermore, the detailed characterizations of the structure and optical properties show that the hydroxyl groups play a crucial role for the red emission of GRCDs phosphor. Asprepared GRCDs phosphor possesses outstanding thermal stability as well as excellent water stability. This finding provides a new way for the development of CDs-based phosphors. (c) 2021 Elsevier B.V. All rights reserved.

引用

页数：8

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