Synthesis, optical and morphological characterization of doped InP/ZnSe NCs

被引：5

作者：

Mushonga, Paul ^{[1
]}

Ouma, Immaculate L. A. ^{[1
]}

Madiehe, Abram M. ^{[2
]}

Meyer, Mervin ^{[2
]}

Dejene, Francis B. ^{[3
]}

Onani, Martin O. ^{[1
]}

机构：

[1] Univ Western Cape, Dept Chem, ZA-7535 Bellville, South Africa

[2] Univ Western Cape, Dept Biotechnol, ZA-7535 Bellville, South Africa

[3] Univ Free State, Dept Phys, ZA-9866 Phuthaditjhaba, South Africa

来源：

PHYSICA B-CONDENSED MATTER | 2014年 / 439卷

基金：

新加坡国家研究基金会;

关键词：

Nanocrystals; Growth-doping; InP/ZnSe; Ag-dopant; Co-dopant; Fe-dopant; QUANTUM DOTS; NANOPARTICLES; ZNSE; EFFICIENT; IONS;

D O I：

10.1016/j.physb.2013.12.009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on the Ag-, Fe-, and Co-doping of InP/ZnSe QDs using the growth doping method. Doping the InP/ZnSe NCs with Ag caused a red shift in the emission spectra with increasing dopant levels while the PL intensity decreased. Fe doping resulted in blue shifted emission spectra. The cobalt doping (Co-doping) had no effect on the emission peak position. Instead, it had a quenching effect on the PL intensities. The HRTEM images showed well-defined lattice fringes for the doped InP/ZnSe NCs while the XRD analyses showed that they retained their zinc blende structure even after doping. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：189 / 192

页数：4

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