Molecular-sized fluorescent nanodiamonds

被引：0

作者：

Vlasov, Igor I. ^{[1
]}

Shiryaev, Andrey A. ^{[2
]}

Rendler, Torsten ^{[3
,4
]}

Steinert, Steffen ^{[3
,4
]}

Lee, Sang-Yun ^{[3
,4
]}

Antonov, Denis ^{[3
,4
]}

Voeroes, Marton ^{[5
]}

Jelezko, Fedor ^{[6
]}

Fisenko, Anatolii V. ^{[7
]}

Semjonova, Lubov F. ^{[7
]}

Biskupek, Johannes ^{[8
]}

Kaiser, Ute ^{[8
]}

Lebedev, Oleg I. ^{[9
]}

Sildos, Ilmo ^{[10
]}

Hemmer, Philip. R. ^{[11
]}

Konov, Vitaly I. ^{[1
]}

Gali, Adam ^{[5
,12
]}

Wrachtrup, Joerg ^{[3
,4
]}

机构：

[1] Gen Phys Inst RAS, Moscow 119991, Russia

[2] RAS, Inst Phys Chem & Electrochem, Moscow 119071, Russia

[3] Univ Stuttgart, Inst Phys 3, D-70550 Stuttgart, Germany

[4] Univ Stuttgart, Res Ctr SCOPE, D-70550 Stuttgart, Germany

[5] Budapest Univ Technol & Econ, Dept Atom Phys, H-1111 Budapest, Hungary

[6] Univ Ulm, Inst Quantum Opt, D-89081 Ulm, Germany

[7] RAS, Vernadsky Inst Geochem & Analyt Chem, Moscow 117901, Russia

[8] Univ Ulm, Cent Facil Electron Microscopy, D-89081 Ulm, Germany

[9] ENSICAEN, CNRS, UMR 6508, Lab CRISMAT, F-14050 Caen, France

[10] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia

[11] 3128 Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA

[12] Hungarian Acad Sci, Wigner Res Ctr Phys, Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

来源：

NATURE NANOTECHNOLOGY | 2014年 / 9卷 / 01期

基金：

美国国家卫生研究院; 欧洲研究理事会; 俄罗斯基础研究基金会; 美国国家科学基金会;

关键词：

SINGLE-PHOTON EMISSION; CORRELATION SPECTROSCOPY; LUMINESCENCE CENTER; VACANCY CENTERS; DIAMOND; NANOPARTICLES; NANOCRYSTALS; METEORITES; DIFFUSION; NITROGEN;

D O I：

10.1038/NNANO.2013.255

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Doping of carbon nanoparticles with impurity atoms is central to their application(1,2). However, doping has proven elusive for very small carbon nanoparticles because of their limited availability and a lack of fundamental understanding of impurity stability in such nanostructures(3). Here, we show that isolated diamond nanoparticles as small as 1.6 nm, comprising only similar to 400 carbon atoms, are capable of housing stable photoluminescent colour centres, namely the silicon vacancy (SiV)(4,5). Surprisingly, fluorescence from SiVs is stable over time, and few or only single colour centres are found per nanocrystal. We also observe size-dependent SiV emission supported by quantum-chemical simulation of SiV energy levels in small nanodiamonds. Our work opens the way to investigating the physics and chemistry of molecular-sized cubic carbon clusters and promises the application of ultrasmall non-perturbative fluorescent nanoparticles as markers in microscopy and sensing.

引用

页码：54 / 58

页数：5

共 33 条

[1] INTERSTELLAR GRAINS IN METEORITES .1. ISOLATION OF SIC, GRAPHITE, AND DIAMOND - SIZE DISTRIBUTIONS OF SIC AND GRAPHITE [J].