Two-photon absorption induced photoluminescence from ZnS nanowires

被引：6
|
作者：
Liu, Kuili [1 ]
Li, Jitao [1 ]
Liu, Quantao [2 ]
Meng, Ming [1 ]
Hu, Lingwei [3 ]
Xu, Chunxiang [4 ]
机构：
[1] Zhoukou Normal Univ, Sch Phys & Telecommun Engn, Zhoukou 466001, Peoples R China
[2] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
[3] Zhoukou Normal Univ, Coll Life Sci & Agron, Zhoukou 466001, Peoples R China
[4] Southeast Univ, State Key Lab Bioelect, Nanjing 210096, Jiangsu, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 718卷
基金：
中国国家自然科学基金;
关键词：
ZnS; Nanowires; Photoluminescence; Two-photon; PHOTORESPONSE; CDS; NANOPARTICLES; ARCHITECTURES; EMISSION; GROWTH;
D O I：
10.1016/j.jallcom.2017.05.123
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：
In this work, the ZnS nanowires was synthesized on Au-coated Si substrate by a vapor phase transport (VPT) method. The morphology and structure of the as-synthesized ZnS nanowires were studied through scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffraction (XRD). Under excitation of the femtosecond (fs) pulsed laser at 650 nm, a strong ultraviolet (UV) emission centered at 343 nm was observed. The peak position and the relationship between the emission intensity and the excitation intensity demonstrated that the UV photoluminescence (PL) be induced by the two-photon absorption (2PA) process. The characteristics and the generation process of the above nonlinear optical phenomena were investigated in detail. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：122 / 125
页数：4
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