Small multimodal thermometry with detonation-created multi-color centers in detonation nanodiamond
英文:
Small multimodal thermometry with detonation-created multi-color centers in detonation nanodiamond
著者
和文:
Frederick T. K. So,
nene Hariki,
Masaya Nemoto,
Alexander Shames,
Ming Liu,
Akihiko Tsurui,
Taro Yoshikawa,
Yuto Makino,
Masanao Ohori,
Masanori Fujiwara,
Ernst Herbschleb,
Naoya Morioka,
Izuru Ohki,
Masahiro Shirakawa,
五十嵐龍治,
Masahiro Nishikawa,
Norikazu Mizuochi.
英文:
Frederick T. K. So,
nene Hariki,
Masaya Nemoto,
Alexander Shames,
Ming Liu,
Akihiko Tsurui,
Taro Yoshikawa,
Yuto Makino,
Masanao Ohori,
Masanori Fujiwara,
Ernst Herbschleb,
Naoya Morioka,
Izuru Ohki,
Masahiro Shirakawa,
Ryuji Igarashi,
Masahiro Nishikawa,
Norikazu Mizuochi.
<jats:p>Detonation nanodiamond (DND) is the smallest class of diamond nanocrystal capable of hosting various color centers with a size akin to molecular pores. Their negatively charged nitrogen-vacancy center (NV−) is a versatile tool for sensing a wide range of physical and even chemical parameters at the nanoscale. The NV− is, therefore, attracting interest as the smallest quantum sensor in biological research. Nonetheless, recent NV− enhancement in DND has yet to yield sufficient fluorescence per particle, leading to efforts to incorporate other group-IV color centers into DND. An example is adding a silicon dopant to the explosive mixture to create negatively charged silicon-vacancy centers (SiV−). In this paper, we report on efficient observation (∼50% of randomly selected spots) of the characteristic optically detected magnetic resonance (ODMR) NV− signal in silicon-doped DND (Si-DND) subjected to boiling acid surface cleaning. The NV− concentration is estimated by continuous-wave electron spin resonance spectroscopy to be 0.35 ppm without the NV− enrichment process. A temperature sensitivity of 0.36K/Hz in an NV− ensemble inside an aggregate of Si-DND is achieved via the ODMR-based technique. Transmission electron microscopy survey reveals that the Si-DNDs core sizes are ∼11.2 nm, the smallest among the nanodiamond’s temperature sensitivity studies. Furthermore, temperature sensing using both SiV− (all-optical technique) and NV− (ODMR-based technique) in the same confocal volume is demonstrated, showing Si-DND’s multimodal temperature sensing capability. The results of the study thereby pave a path for multi-color and multimodal biosensors and for decoupling the detected electrical field and temperature effects on the NV− center.</jats:p>
各種検索
サポート
ヘルプ