Fluorescence lifetime of Mn-doped ZnSe quantum dots with size dependence

被引：68

作者：

Gan, Chenli ^{[1
]}

Zhang, Yanpeng ^{[1
]}

Battaglia, David ^{[2
]}

Peng, Xiaogang ^{[2
]}

Xiao, Min ^{[1
]}

机构：

[1] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

[2] Univ Arkansas, Dept Chem & Biochem, Fayetteville, AR 72701 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 24期

关键词：

D O I：

10.1063/1.2945274

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Radiative lifetimes of high quality Mn:ZnSe nanocrystals synthesized by nucleation-doping method are experimentally measured at wavelength near 580 nm. The slow decay rate in millisecond time scale is identified as the radiative decay from the T-4(1) metastable excited state of Mn2+ ions embedded in the ZnSe nanocrystals. Also, two fast decay components are measured at this wavelength with much lower intensities, which can be attributed to the emission tails from the host ZnSe nanocrystals and from the surface-trap states or the self-activated luminescence due to Mn ion pairs, respectively. Size dependences of the radiative decay rates for the Mn:ZnSe samples are measured.

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页数：3

相关论文

共 33 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[2] Doped nanocrystalline materials - Physics and applications [J].

Bhargava, RN .

JOURNAL OF LUMINESCENCE, 1996, 70 :85-94

[3] OPTICAL-PROPERTIES OF MANGANESE-DOPED NANOCRYSTALS OF ZNS [J].

BHARGAVA, RN ;

GALLAGHER, D ;

HONG, X ;

NURMIKKO, A .

PHYSICAL REVIEW LETTERS, 1994, 72 (03) :416-419

[4] Long-lived Mn2+ emission in nanocrystalline ZnS:Mn2+ [J].

Bol, AA ;

Meijerink, A .

PHYSICAL REVIEW B, 1998, 58 (24) :15997-16000

[5] Optical properties of Mn-doped CdS nanocrystals [J].

Chamarro, MA ;

Voliotis, V ;

Grousson, R ;

Lavallard, P ;

Gacoin, T ;

Counio, G ;

Boilot, JP ;

Cases, R .

JOURNAL OF CRYSTAL GROWTH, 1996, 159 (1-4) :853-856

[6] New observations on the luminescence decay lifetime of Mn2+ in ZnS:Mn2+ nanoparticles -: art. no. 124707 [J].

Chen, W ;

Aguekian, VF ;

Vassiliev, N ;

Serov, AY ;

Filosofov, NG .

JOURNAL OF CHEMICAL PHYSICS, 2005, 123 (12)

[7]

COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0

[8] Photoluminescence spectroscopy of single CdSe nanocrystallite quantum dots [J].

Empedocles, SA ;

Norris, DJ ;

Bawendi, MG .

PHYSICAL REVIEW LETTERS, 1996, 77 (18) :3873-3876

[9] DILUTED MAGNETIC SEMICONDUCTORS [J].

FURDYNA, JK .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (04) :R29-R64

[10] Mechanism of intra-shell recombination of transition metal and rare earth ions in nanostructures of II-VI compounds [J].

Godlewski, M ;

Yatsunenko, S ;

Khachapuridze, A ;

Ivanov, VY ;

Golacki, Z ;

Karczewski, G ;

Bergman, PJ ;

Klar, P ;

Heimbrodt, W ;

Phillips, MR .

JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 380 (1-2) :45-49

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