Fluorescent HPHT nanodiamonds have disk- and rod-like shapes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F23%3A00569756" target="_blank" >RIV/61388963:_____/23:00569756 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/23:10470950
Result on the web
<a href="https://doi.org/10.1016/j.carbon.2023.02.018" target="_blank" >https://doi.org/10.1016/j.carbon.2023.02.018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.carbon.2023.02.018" target="_blank" >10.1016/j.carbon.2023.02.018</a>
Alternative languages
Result language
angličtina
Original language name
Fluorescent HPHT nanodiamonds have disk- and rod-like shapes
Original language description
Fluorescent nanodiamonds (FNDs) containing nitrogen-vacancy (NV) centers can be used as nanoscale sensors for temperature and electromagnetic fields and find increasing application in many areas of science and technology from biology to quantum metrology. Decreasing the separation between the NV centers and their sensing target often enhances the measurement sensitivity. FND shape strongly affects this distance from NV centers to the particle surface and therefore properties such as brightness and fluorescence spectrum, and can limit sensor applications. Here, we demonstrate that FNDs made from high-pressure high-temperature (HPHT) diamond have predominantly disk-like shapes. Using single-particle atomic force microscopy in combination with ensemble X-ray and light scattering techniques, we show that a typical FND in the 50–150 nm size range has an aspect ratio of three i.e. is three times thinner (e.g. in z) than it is wide (e.g. in the x-y plane). This high aspect ratio of FNDs is important for many quantum sensing measurements as it will enable enhanced sensitivities compared to spherical or other isotropic particle geometries. We investigate FND shape, fluorescence properties, T1 spin relaxation time and T1 fluorescence contrast as functions of particle size and discuss the implications of FND particle shape on quantum sensing applications.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
<a href="/en/project/EF16_026%2F0008382" target="_blank" >EF16_026/0008382: Carbon allotropes with rationalized nanointerfaces and nanolinks for environmental and biomedical applications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Carbon
ISSN
0008-6223
e-ISSN
1873-3891
Volume of the periodical
206
Issue of the periodical within the volume
March
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
268-276
UT code for WoS article
001009050600001
EID of the result in the Scopus database
2-s2.0-85148699742