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SUMMARY:Size\, shape and colloidal stability of fluorescent nanodiamonds i
 n aqueous suspension
DTSTART;VALUE=DATE-TIME:20211125T073800Z
DTEND;VALUE=DATE-TIME:20211125T073900Z
DTSTAMP;VALUE=DATE-TIME:20260718T061516Z
UID:indico-contribution-4236@events01.synchrotron.org.au
DESCRIPTION:Speakers: samir samir eldemrdash (School of science\, RMIT Uni
 versity\, Melbourne\, Victoria 3001\, Australia)\nFluorescent nanodiamonds
  (FNDs) containing negatively charged nitrogen-vacancy (NV–) centres hav
 e outstanding optical\, photostability and spin properties which make them
  promising candidates as nanoscale sensors\, and for quantum computing and
  bioimaging in biological media.\n\nThe location of NV atoms relative to t
 he surface of the particles is essential for these applications – if the
  NV atoms are buried too deeply\, this will lead to lower brightness3. To 
 optimize these properties\, the particles must either be small or must hav
 e at least one dimension which is thin (eg plate shaped particles). The si
 ze and shape are therefore vital parameters to be investigated. Our collab
 orators4 examined the size effect on the optical properties of a wide rang
 e of FND particles\, however\, their 3D structure and colloidal stability 
 have not been widely studied and are not well understood.\n \nHere\, we sy
 stematically investigate the 3D shape of FNDs in water for a range of size
 s and investigate the colloidal stability of these particles using dynamic
  light scattering\, depolarised dynamic light scattering and synchrotron-b
 ased small-angle X-ray scattering (SAXS). Initial (SAXS) results suggest a
 n interesting relation between the reported shape\, DLS size of FND partic
 les and emitted fluorescence.\n\nhttps://events01.synchrotron.org.au/event
 /146/contributions/4236/
LOCATION:Online
URL:https://events01.synchrotron.org.au/event/146/contributions/4236/
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