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From Fancy Blue to Red: Controlled Production of a Vibrant Color Spectrum of Fluorescent Diamond Particles
Author(s) -
Dei Cas Laura,
Zeldin Steven,
Nunn Nicholas,
Torelli Marco,
Shames Alexander I.,
Zaitsev Alexander M.,
Shenderova Olga
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201808362
Subject(s) - diamond , materials science , luminescence , fluorescence , synthetic diamond , nanotechnology , particulates , annealing (glass) , blue light , diamond type , material properties of diamond , optoelectronics , optics , chemistry , metallurgy , physics , organic chemistry
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.