A co-crystallization induced surface modification strategy with cyanuric acid modulates the bandgap emission of carbon dots

被引：65

作者：

Zhou, Zhengjie ^{[1
,2
]}

Ushakova, Elena, V ^{[3
,4
,5
]}

Liu, Enshan ^{[6
]}

Bao, Xin ^{[1
,2
]}

Li, Di ^{[1
]}

Zhou, Ding ^{[1
]}

Tan, Zhanao ^{[6
]}

Qu, Songnan ^{[7
]}

Rogach, Andrey L. ^{[3
,4
,5
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Hong Kong, Peoples R China

[4] City Univ Hong Kong, Ctr Funct Photon, Kowloon, Hong Kong, Peoples R China

[5] ITMO Univ, Ctr Informat Opt Technol, St Petersburg 197101, Russia

[6] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China

[7] Univ Macau, Joint Key Lab, Minist Educ, Inst Appl Phys & Mat Engn, Taipa, Macao, Peoples R China

来源：

NANOSCALE | 2020年 / 12卷 / 20期

基金：

中国国家自然科学基金;

关键词：

GRAPHENE QUANTUM DOTS; PHOTOLUMINESCENCE; NANODOTS;

D O I：

10.1039/d0nr02639e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Along the line of offering surface modification strategies to tune emission properties of carbon dots (CDs), a co-crystallization strategy with cyanuric acid (CA) was developed to modulate the bandgap emissions of CDs and produce highly emissive solid composite CD-based materials. The original blue emission of the CDs changed to a green emission of the CDs@CA crystals, which showed a high photoluminescence quantum yield of 62% and room temperature phosphorescence. The CA molecules firmly bonded to the surface of the CDs and cannot be disrupted by polar solvents or temperature stimuli under ambient conditions, which influenced electron transitions of CDs leading to improved luminescence with excellent thermal stability both in solution and solid states.

引用

页码：10987 / 10993

页数：7

共 31 条

[1] Luminescent Carbon Nanodots: Emergent Nanolights [J].