[12a-S301-1~11] 6.2 Carbon-based thin films

△ [12a-S301-1] Temperature sensitivity measurement using SiV centers in detonation nanodiamonds

〇Gaku Uchida¹, Masanori Fujiwara¹, Izuru Ohki¹, Akihiko Tsurui², Ming Liu², Masahiro Nishikawa², Norikazu Mizuochi¹ (1.Kyoto Univ., 2.Daicel Corp.)

Keywords:SiV center, diamond, detonation

Nanodiamonds containing silicon-vacancy (SiV) centers are promising as a probe for measuring local temperature in living cells. Recently, we have produced nanodiamonds containing SiV centers by the detonation method (SiV-DND) which enables inexpensive and mass production, and reported that the fluorescence spectrum of SiV-DND shifts to the longer wavelength as temperature rises. In this study, we obtained SiV-DND with an average particle size of about 20 nm by classification, and estimated temperature sensitivity of them.