Carbon dot grafted SrAl2O4:Eu,Dy dual-emitting phosphor for ratiometric temperature sensing

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 89238-89243 ◽  
Author(s):  
Bingfu Lei ◽  
Wei Li ◽  
Haoran Zhang ◽  
Jin Wang ◽  
Yingliang Liu ◽  
...  

We incorporated carbon dots (CDs) into a SrAl2O4:Eu,Dy phosphor (SAO), and made use of the dual emission from the CDs and SAO within such a composite to realize ratiometric temperature sensing from 100 to 400 K.

2021 ◽  
Author(s):  
Xiaofeng Li ◽  
Yuejing Bao ◽  
Xiaorui Dong ◽  
Lihong Shi ◽  
Shaomin Shuang

Dual-excitation and dual-emission carbon dots (CDs) have been prepared by simple one-step hydrothermal treatment of p-phenylenediamine and 5-aminosalicylic acid. As-prepared CDs emit bright green fluorescence under the excitation of 320...


Author(s):  
Qijun Li ◽  
Yuchen Li ◽  
Shuai Meng ◽  
Jian Yang ◽  
Yukun Qin ◽  
...  

White-light-emitting carbon dots (CDs) with fluorescence/phosphorescence dual-emission feature is great importance for single-phase white-light-emitting diodes (WLEDs), but so far rather limited due to weak phosphorescence. Herein, a highly efficient white-light...


2018 ◽  
Vol 42 (24) ◽  
pp. 19771-19778 ◽  
Author(s):  
Yunsuo Kuang ◽  
Linfeng Chen ◽  
Jiahui Lu ◽  
Xike Tian ◽  
Chao Yang ◽  
...  

In this work, we successfully developed an ultrasensitive dual-emission fluorescent sensor (CRB) for instant visual determination of Cu2+ by modifying a Cu-sensitive rhodamine B derivative (RB) onto photostable carboxyl modified carbon dots (CDs).


2019 ◽  
Vol 1 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Jun-Ray Macairan ◽  
Dilan B. Jaunky ◽  
Alisa Piekny ◽  
Rafik Naccache

A self-referencing dual fluorescing carbon dot-based nanothermometer can ratiometrically sense thermal events in HeLa cells with very high sensitivity.


Carbon ◽  
2020 ◽  
Vol 163 ◽  
pp. 26-33 ◽  
Author(s):  
Yingnan Jiang ◽  
Xiaojie Zhang ◽  
Lizhi Xiao ◽  
Ruyue Yan ◽  
Jingwei Xin ◽  
...  

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1232
Author(s):  
Jiaqing Guo ◽  
Aikun Liu ◽  
Yutian Zeng ◽  
Haojie Cai ◽  
Shuai Ye ◽  
...  

The use of carbon dots (CDs) with dual emission based on ratiometric fluorescence has been attracting attention in recent times for more accurate ion detection since they help avoid interference from background noise, probe concentration, and complexity. Herein, novel dual-emission nitrogen-doped CDs (NCDs) were prepared by a simple method for Cu2+ and ClO- detection. The NCDs showed excellent anti-interference ability and selectivity for different emissions. In addition, a good linear relationship was observed between the fluorescence intensity (FI) of the NCD solutions in different emissions with Cu2+ (0–90 μM) and ClO- (0–75 μM). The limits of both Cu2+ detection and ClO- were very low, at 17.7 and 11.6 nM, respectively. The NCDs developed herein also showed a good recovery rate in water for Cu2+ and ClO− detection. Hence, they are expected to have a more extensive application prospect in real samples.


2021 ◽  
pp. 338743
Author(s):  
Qian He ◽  
Shengyi Zhuang ◽  
Yuxiu Yu ◽  
Haojie Li ◽  
Yaodong Liu

CrystEngComm ◽  
2021 ◽  
Author(s):  
Huiyuan Kou ◽  
Shujie Pang ◽  
Boyu Yang ◽  
Mao Wang ◽  
Juan Ding ◽  
...  

In this work, a new type of ratiometric fluorescent nanoprobe with dual-emission properties is designed and constructed. The dual-emission nanoprobe is prepared from fluorescent silicon nanoparticles (Si NPs) and carbon...


The Analyst ◽  
2020 ◽  
Vol 145 (3) ◽  
pp. 1056-1061 ◽  
Author(s):  
Yali Yang ◽  
Haijuan Zhang ◽  
Jia Chen ◽  
Zhan Li ◽  
Liang Zhao ◽  
...  

Red emitting carbon dots derived from p-phenylenediamine were successfully grafted onto the surface of porous silica spheres which served as a new stationary phase for hydrophilic interaction chromatography with enhanced selectivity.


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