TY - JOUR
T1 - From Fancy Blue to Red
T2 - Controlled Production of a Vibrant Color Spectrum of Fluorescent Diamond Particles
AU - Dei Cas, Laura
AU - Zeldin, Steven
AU - Nunn, Nicholas
AU - Torelli, Marco
AU - Shames, Alexander I.
AU - Zaitsev, Alexander M.
AU - Shenderova, Olga
N1 - Funding Information:
L.D.S. acknowledges financial support of this research by Milano-Bicocca University Exchange-Extra-UE Program. This work has been funded in part by the NHLBI, Department of Health and Human Services, under Contract No. HHSN268201500010C and by the National Cancer Institute of the National Institutes of Health under Award No. R43CA232901. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The authors thank Timm Dunn (Diamond Innovations) for providing high-nitrogen samples for analysis and Eugene Shenderov for valuable assistance with sample analysis.
Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2019/5/9
Y1 - 2019/5/9
N2 - The current study reports a breakthrough method for production of multicolor diamond particulates using a rapid thermal annealing (RTA) approach with precise temperature and time control, enabling annealing of diamond particulates up to 2100 °C without extensive graphitization. The RTA method generates conditions which allow formation of one-, two-, and three-atom nitrogen complexes with vacancies in electron irradiated type Ib synthetic diamond, providing vibrant luminescence in the red, green, and blue spectral ranges, correspondingly. Controlled and highly reproducible formation of specific color centers previously not possible in type Ib synthetic diamond particles opens new opportunities for particulate diamond in a plethora of fluorescence imaging applications in biological and industrial fields.
AB - The current study reports a breakthrough method for production of multicolor diamond particulates using a rapid thermal annealing (RTA) approach with precise temperature and time control, enabling annealing of diamond particulates up to 2100 °C without extensive graphitization. The RTA method generates conditions which allow formation of one-, two-, and three-atom nitrogen complexes with vacancies in electron irradiated type Ib synthetic diamond, providing vibrant luminescence in the red, green, and blue spectral ranges, correspondingly. Controlled and highly reproducible formation of specific color centers previously not possible in type Ib synthetic diamond particles opens new opportunities for particulate diamond in a plethora of fluorescence imaging applications in biological and industrial fields.
KW - diamond particles
KW - nitrogen aggregation
KW - optical centers
KW - photoluminescence
KW - thermal annealing
UR - http://www.scopus.com/inward/record.url?scp=85061292394&partnerID=8YFLogxK
U2 - 10.1002/adfm.201808362
DO - 10.1002/adfm.201808362
M3 - Article
AN - SCOPUS:85061292394
SN - 1616-301X
VL - 29
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 19
M1 - 1808362
ER -