文献类型：期刊文献

英文题名：Molecular Glue Strategy: Large-Scale Conversion of Clustering-Induced Emission Luminogen to Carbon Dots

作者：Wang, Ping[1];Liu, Chen[1];Tang, Weiqiang[2,3];Ren, Shixue[1];Chen, Zhijun[1];Guo, Yuanru[1];Rostamian, Rahele[4];Zhao, Shuangliang[2,3];Li, Jian[1];Liu, Shouxin[1];Li, Shujun[1]

机构：[1]Northeast Forestry Univ, Key Lab Biobased Mat Sci & Technol, Minist Educ, Harbin 150040, Heilongjiang, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[4]Univ Tehran, Univ Coll Sci, Sch Chem, Dept Phys Chem, Tehran 14155, Iran

年份：2019

卷号：11

期号：21

起止页码：19301

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20192407024338);WOS:【SCI-EXPANDED(收录号:WOS:000470034700045)】；

基金：The National Key R&D Program of China (2018YFD0600302), the National Natural Science Foundation of China (nos. 31800494, 201401019, and 21878078), the Young Elite Scientists Sponsorship Program by CAST (2018QNRC001), the Heilongjiang Science Fund for Distinguished Young Scholars (JC2017003), and Iranian national science foundation (95013718).

语种：英文

外文关键词：carbon dots; large-scale preparation; clustering-induced emission; molecular glue; inter-space conjugation

摘要：Carbon dots have wide applications in bioimaging, encryption, sensing, and light-emitting devices, but most preparations of carbon dots require complicated separation and purification steps. Here, a clustering-induced emission luminogen, sodium alginate, was covalently "glued" by ethylenediamine to prepare carbon dots on a 100 g scale, without any separation or purification. The conversion yield was as high as 94.7%. Theoretical calculations suggested that the fluorescence emission of as-prepared carbon dots (N-CDs) was mainly attributable to through-space conjugation between oxygen atoms and carbonyl moieties. The N-CDs were shown to have applications as a fluorescent ink for encryption and as a phosphor for white light-emitting diodes. This work provides a convenient method for the large-scale preparation of carbon dots and a new understanding of fluorescent emission of carbon dots.