Surface Sensitive Photoluminescence of Carbon Nanodots: Coupling between the Carbonyl Group and pi-Electron System

doi:10.1021/acs.jpclett.9b01339

	Surface Sensitive Photoluminescence of Carbon Nanodots: Coupling between the Carbonyl Group and pi-Electron System
	Liu, Cui 1,3,4; Bao, Lei 3,4; Yang, Mengli 3,4; Zhang, Song 2,5; Zhou, Miaomiao 2,5; Tang, Bo 3,4; Wang, Baoshan 3,4; Liu, Yufei 1; Zhang, Zhi-Ling 3,4; Zhang, Bing 2,5
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2019-07-04
卷号	10 期号:13 页码:3621-3629
ISSN号	1948-7185
DOI	10.1021/acs.jpclett.9b01339
英文摘要	The functional groups and pi-electron system of carbon dots (C-dots) were carefully controlled by several innovative chemical methods, without any changes in size, to unravel the relationship between the surface structure and photoluminescence (PL). The results of experiments and theoretical calculations reveal that the PL of C-dots is related to the surface state. The energy gap is determined by the coupling of the pi-electron system and carbonyl group, and the quantum yield (QY) is dependent on the carbonyl group. The carbonyl group is the main factor increasing the ratio of nonradiation to radiation recombination, thereby leading to the low QY of C-dots. This work provides a strategy for effectively tuning the structure of C-dots, giving rise to the tunable PL emission wavelength and highly desirable QY, which enables us to further unravel the PL mechanism.
资助项目	National Natural Science Foundation of China[21535005] ; National Natural Science Foundation of China[11674355] ; National Natural Science Foundation of China[21573165] ; National Natural Science Foundation of China[21805021] ; 111 Project[111-2-10] ; National Key Research and Development Program of China[2016YFE0125200] ; Collaborative Innovation Center for Chemistry and Molecular Medicine
WOS关键词	GRAPHENE QUANTUM DOTS ; LUMINESCENCE ; FLUORESCENCE ; GREEN ; STATE ; RED ; PHOTOCATALYST ; EMISSION ; NANOPARTICLES ; REDUCTION
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000474812600018
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; 111 Project ; 111 Project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Collaborative Innovation Center for Chemistry and Molecular Medicine ; Collaborative Innovation Center for Chemistry and Molecular Medicine ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 111 Project ; 111 Project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Collaborative Innovation Center for Chemistry and Molecular Medicine ; Collaborative Innovation Center for Chemistry and Molecular Medicine ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 111 Project ; 111 Project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Collaborative Innovation Center for Chemistry and Molecular Medicine ; Collaborative Innovation Center for Chemistry and Molecular Medicine ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 111 Project ; 111 Project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Collaborative Innovation Center for Chemistry and Molecular Medicine ; Collaborative Innovation Center for Chemistry and Molecular Medicine
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/14613]
专题	中国科学院武汉物理与数学研究所
通讯作者	Zhang, Song; Zhang, Zhi-Ling
作者单位	1.Chongqing Univ, Coll Optoelect Engn, Ctr Intelligent Sensing Technol, Key Lab Optoelect Technol & Syst,Minist Educ, Chongqing 400044, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Wuhan Univ, Inst Adv Studies, Coll Chem & Mol Sci,Minist Educ, Key Lab Analyt Chem Biol & Med,State Key Lab Viro, Wuhan 430072, Hubei, Peoples R China 4.Wuhan Univ, Wuhan Inst Biotechnol, Wuhan 430072, Hubei, Peoples R China 5.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Liu, Cui,Bao, Lei,Yang, Mengli,et al. Surface Sensitive Photoluminescence of Carbon Nanodots: Coupling between the Carbonyl Group and pi-Electron System[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2019,10(13):3621-3629.
APA	Liu, Cui.,Bao, Lei.,Yang, Mengli.,Zhang, Song.,Zhou, Miaomiao.,...&Pang, Dai-Wen.(2019).Surface Sensitive Photoluminescence of Carbon Nanodots: Coupling between the Carbonyl Group and pi-Electron System.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,10(13),3621-3629.
MLA	Liu, Cui,et al."Surface Sensitive Photoluminescence of Carbon Nanodots: Coupling between the Carbonyl Group and pi-Electron System".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10.13(2019):3621-3629.