Luminescent Properties of ZnS:Mn2+/ZnS Core/Shell Nanocrystals

被引：1

作者：

Zhang, Fujun ^{[1
]}

Quan, Zewei ^{[2
]}

Wang, Jian ^{[1
]}

Xu, Xiaowei ^{[1
]}

Zhuo, Zuliang ^{[1
]}

Xu, Zheng ^{[1
]}

Wang, Yongsheng ^{[1
]}

Lin, Jun ^{[2
]}

机构：

[1] Beijing Jiaotong Univ, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing 100044, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2011年 / 11卷 / 11期

基金：

中国国家自然科学基金; 国家杰出青年科学基金;

关键词：

Nanocrystals; Photoluminescence; Electroluminescence; ELECTROLUMINESCENT PROPERTIES; OPTICAL-PROPERTIES; ZNS; SEMICONDUCTOR; FLUORESCENCE; ZNS-MN2+;

D O I：

10.1166/jnn.2011.5210

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High-quality ZnS:Mn2+/ZnS core/shell nanocrystals (NCs) with a core crystal diameter of 6.1 nm and 1.15 nm thick shells were synthesized via a high-boiling solvent process. The energy levels of the conduction band and valance band are estimated to be -3.2 eV and -6.8 eV by cyclic voltammetry and ultraviolet-visible (UV-vis) absorption spectra. The ZnS:Mn2+/ZnS NC emission peak is primarily located at 580 nm under 310 nm light excitation, originating from the charge transition from T-4(1) to (6)A(1) within the 3d(5) configuration of the Mn2+ ion. Based on ZnS:Mn2+/ZnS NCs as the active layer electrolunninescent devices, the emission peak mainly locates at 460 nm with one shoulder emission peaking at 580 nm. The photoluminescence and electroluminescence properties of ZnS:Mn2+/ZnS NCs are investigated in the view of charge carrier injection and energy level alignment.

引用

页码：9460 / 9463

页数：4

共 22 条

[1] Luminescence in colloidal Mn2+-doped semiconductor nanocrystals [J].