Controllable preparation of boron nitride quantum dots with small size and strong blue photoluminescence

doi:10.1016/j.colsurfa.2021.126181

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Controllable preparation of boron nitride quantum dots with small size and strong blue photoluminescence
	Chen, Li 2; Zhang, Xiaofang 2,3; Zhao, Zhao 3; Wang, Fan 2,3; Huang, Yin 2,3; Bai, Changning 1,3; An, Lulu 1,3; Yu, Yuanlie 1,3
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2021
卷号	614
关键词	Boron nitride quantum dots Small size Strong blue photoluminescence nanosecond decay
ISSN号	0927-7757
DOI	10.1016/j.colsurfa.2021.126181
英文摘要	As a new type of quantum dots (QDs), boron nitride QDs (BNQDs), show promising potentials in disease diagnosis, fluorescence imaging and bio-sensing due to its good biocompatibility, low cytotoxicity and excellent photoluminescence performance. However, there are still challenges in preparing BNQDs with uniform and small size. In this paper, the BNQDs with uniform and small size have been prepared through a hydrothermal process with the exfoliated hexagonal boron nitride nanosheets (h-BNNSs) as precursor. The as-prepared BNQDs were characterized by transmission electron microscope (TEM), high-resolution TEM, fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, UV-vis and photoluminescence spectra (PL) for morphology, surface functional groups, element composition and optical properties. The as-prepared BNQDs have uniform particle size distribution with an average lateral size of 1.65 nm, and a PL quantum yield of 2.49 %. In addition, the as-prepared BNQDs exhibit strong blue fluorescence under UV-vis (365 nm) irradiation and nanosecond luminescent decay. Furthermore, the effect of preparation parameters on the fluorescence performance of BNQDs was investigated which provides an optimal condition for the preparation of BNQDs with excellent fluorescence performance. Together with other advantages, such as excellent physical/chemical properties, good biocom-patibility and low cytotoxicity, the as-prepared BNQDs have great potentials in medical diagnosis, biosensing, photoelectric devices and other fields in the future.
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000623249800003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147410]
专题	石油化工学院
作者单位	1.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 2.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Sci & Technol Wear & Protect Mat, Lanzhou 730000, Peoples R China;
推荐引用方式 GB/T 7714	Chen, Li,Zhang, Xiaofang,Zhao, Zhao,et al. Controllable preparation of boron nitride quantum dots with small size and strong blue photoluminescence[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2021,614.
APA	Chen, Li.,Zhang, Xiaofang.,Zhao, Zhao.,Wang, Fan.,Huang, Yin.,...&Yu, Yuanlie.(2021).Controllable preparation of boron nitride quantum dots with small size and strong blue photoluminescence.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,614.
MLA	Chen, Li,et al."Controllable preparation of boron nitride quantum dots with small size and strong blue photoluminescence".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 614(2021).