Photoluminescence of a single quantum emitter in a strongly inhomogeneous chemical environment

被引：11

作者：

Chizhik, Anna M. ^{[1
]}

Tarpani, Luigi ^{[2
,3
]}

Latterini, Loredana ^{[2
,3
]}

Gregor, Ingo ^{[1
]}

Enderlein, Joerg ^{[1
]}

Chizhik, Alexey I. ^{[1
]}

机构：

[1] Georg August Univ, Inst Phys 3, D-37077 Gottingen, Germany

[2] Univ Perugia, Dipartimento Chim Biol & Biotecnol, I-06123 Perugia, Italy

[3] Ctr Eccellenza Mat Innovat Nanostrut, I-06123 Perugia, Italy

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2015年 / 17卷 / 22期

关键词：

SILICA NANOPARTICLES; YIELD MEASUREMENT; LUMINESCENCE; FLUORESCENCE; SPECTROSCOPY; MOLECULES;

D O I：

10.1039/c5cp01371b

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：

We present the results of a comprehensive photoluminescence study of defect centres in single SiO2 nanoparticles. We show that the photo-physical properties of the luminescent centres strongly resemble those of single dye molecules. However, these properties exhibit a large variability from particle to particle due to the different local chemical environment around each centre of each particle. This variability provides new insight into the complex photo-physics of single quantum emitters embedded into a random chemical environment. Moreover, a better understanding of the fundamental mechanism of the photoluminescence of defect centres in SiO2 structure is paramount for their application as white-light sources, non-toxic labels for bio-imaging, or for combining them with metallic and semiconductor nanostructures.

引用

页码：14994 / 15000

页数：7

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