Tunable photoluminescence of MoS2 quantum dots passivated by different functional groups

被引：32
|
作者：
Zhu, Xingqun [1 ]
Xiang, Junxiang [1 ]
Li, Jing [1 ]
Feng, Chao [1 ]
Liu, Ping [1 ]
Xiang, Bin [1 ,2 ]
机构：
[1] Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Synerget Innovat Ctr Quantum Informat Quantum Phy, Hefei 230026, Anhui, Peoples R China
[2] Quanzhou Normal Univ, Photon Technol R&D Ctr, 398 Donghai Main St, Quanzhou 362000, Fujian, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2018年 / 511卷
关键词：
SURFACTANT-ASSISTED SYNTHESIS; ONE-POT; GRAPHENE; CONVERSION; NANOSHEETS; FACILE;
D O I：
10.1016/j.jcis.2017.09.118
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Recently, transitional metal dichalcogenides quantum dots have attracted much interest as a potential candidate for the application of fluorescent materials. However, little work has been done on tuning their band gap by varying functional groups. Here, we report a band-gap tunability of 1 eV in the MoS2 quantum dots (QDs) modified by different functional groups. In our results, it has also been confirmed that a tunable band gap in the MoS2 QDs can be achieved by monotonically varying the concentration of a functional group. A mechanism has also been proposed to explain the enhanced photoluminescence behaviors in the functionalized MoS2 QDs. Our work provides a general guideline to develop other semiconducting QDs to be future impressive fluorescent materials. (C) 2017 Elsevier Inc. All rights reserved.
引用
收藏
页码：209 / 214
页数：6
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