Study on the optical properties of Zn1-xMgxS (0 ≤ x ≤ 0.55) quantum dots prepared by precipitation method

被引：16

作者：

Chen, Zhong ^{[1
,2
]}

Li, Xiao Xia ^{[2
]}

Chen, Nan ^{[1
]}

Du, Guoping ^{[1
]}

Li, Yangsheng ^{[1
]}

Liu, Guihua ^{[1
]}

Suen, Andy Y. M. ^{[3
]}

机构：

[1] Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Peoples R China

[2] Jiangxi Univ Finance & Econ, Inst Funct Mat, Nanchang 330013, Peoples R China

[3] Info Bright Technol Co Ltd, Shenzhen 518055, Guangdong, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2012年 / 177卷 / 03期

关键词：

Quantum dots; Mg-doped ZnS; Photoluminescence; ZNO THIN-FILMS; THERMAL-STABILITY; BAND-GAP; SULFIDE; NANOPARTICLES;

D O I：

10.1016/j.mseb.2011.12.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zn1-xMgxS (0 <= x <= 0.55) quantum dots (QDs) were successfully synthesized by precipitation method. The crystal structures, microstructures, and optical properties of the Zn1-xMgxS QDs were investigated using X-ray diffraction, scanning electron microscopy, and ultraviolet-visible and photoluminescence (PL) spectroscopy. The Zn1-xMgxS QDs were found to have a cubic crystal structure and an average crystallite size of 6.40-7.96 nm. It has been shown that an increase in doping Mg2+ concentration in Zn1-xMgxS QDs led to a gradual widening of the band gap and a weakening in the PL intensity of the Zn1-xMgxS QDs. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：337 / 340

页数：4

共 31 条

[1] Thermal stability and optical properties of HMTA capped zinc sulfide nanoparticles [J].

Anand, K. Vijai ;

Chinnu, M. Karl ;

Kumar, R. Mohan ;

Mohan, R. ;

Jayavel, R. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 496 (1-2) :665-668

[2] PHOTO-LUMINESCENCE AND PHOTOINDUCED OXYGEN-ADSORPTION OF COLLOIDAL ZINC-SULFIDE DISPERSIONS [J].

BECKER, WG ;

BARD, AJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1983, 87 (24) :4888-4893

[3] ELECTRONIC WAVE-FUNCTIONS IN SEMICONDUCTOR CLUSTERS - EXPERIMENT AND THEORY [J].

BRUS, L .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (12) :2555-2560

[4] Absorption and luminescence of the surface states in ZnS nanoparticles [J].

Chen, W ;

Wang, ZG ;

Lin, ZJ ;

Lin, LY .

JOURNAL OF APPLIED PHYSICS, 1997, 82 (06) :3111-3115

[5] Electrodeposition of ZnO thin films on n-Si(100) [J].

Dalchiele, EA ;

Giorgi, P ;

Marotti, RE ;

Martín, F ;

Ramos-Barrado, JR ;

Ayouci, R ;

Leinen, D .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2001, 70 (03) :245-254

[6] Modeling of ZnS quantum dots synthesis by DFT techniques [J].

de Queiroz, Alvaro A. A. ;

Martins, Mayler ;

Soares, Demetrio A. W. ;

Franca, Ecio J. .

JOURNAL OF MOLECULAR STRUCTURE, 2008, 873 (1-3) :121-129

[7] Mn-doped ZnS nanoparticles as efficient low-voltage cathodoluminescent phosphors [J].

Dinsmore, AD ;

Hsu, DS ;

Gray, HF ;

Qadri, SB ;

Tian, Y ;

Ratna, BR .

APPLIED PHYSICS LETTERS, 1999, 75 (06) :802-804

[8] Characterisation of HfO2 deposited by photo-induced chemical vapour deposition [J].

Fang, Q ;

Zhang, JY ;

Wang, ZM ;

Wu, JX ;

O'Sullivan, BJ ;

Hurley, RK ;

Leedham, TL ;

Davies, H ;

Audier, MA ;

Jimenez, C ;

Senateur, JP ;

Boyd, IW .

THIN SOLID FILMS, 2003, 427 (1-2) :391-396

[9] Optical Properties of Mg-Substituted ZnO Nanoparticles Obtained by Solution Growth [J].

Ghosh, Manoranjan ;

Raychaudhuri, A. K. .

IEEE TRANSACTIONS ON NANOTECHNOLOGY, 2011, 10 (03) :555-559

[10]

Hoa T.T.Q., 2011, OPT MATER, V33, P308

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