Enhanced photoluminescence from single nitrogen-vacancy defects in nanodiamonds coated with phenol-ionic complexes

被引：25

作者：

Bray, Kerem ^{[1
]}

Previdi, Rodolfo ^{[1
]}

Gibson, Brant C. ^{[2
]}

Shimoni, Olga ^{[1
]}

Aharonovich, Igor ^{[1
]}

机构：

[1] Univ Technol Sydney, Sch Phys & Adv Mat, Broadway, NSW 2007, Australia

[2] RMIT Univ, ARC Ctr Excellence Nanoscale BioPhoton, Sch Appl Sci, Melbourne, Vic 3001, Australia

来源：

NANOSCALE | 2015年 / 7卷 / 11期

基金：

澳大利亚研究理事会;

关键词：

ELECTRON-SPIN; CENTERS;

D O I：

10.1039/c4nr07510b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fluorescent nanodiamonds are attracting major attention in the field of bio-sensing and bio-labeling. In this work we demonstrate a robust approach to achieve an encapsulation of individual nanodiamonds with phenol-ionic complexes that enhance the photoluminescence from single nitrogen vacancy (NV) centers. We show that single NV centres in the coated nanodiamonds also exhibit shorter lifetimes, opening another channel for high resolution sensing. We propose that the nanodiamond encapsulation reduces the non-radiative decay pathways of the NV color centers. Our results provide a versatile and assessable way to enhance photoluminescence from nanodiamond defects that can be used in a variety of sensing and imaging applications.

引用

页码：4869 / 4874

页数：6

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