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タイトル: | Small multimodal thermometry with detonation-created multi-color centers in detonation nanodiamond |
著者: | So, Frederick T.-K. Hariki, Nene Nemoto, Masaya Shames, Alexander I. Liu, Ming Tsurui, Akihiko Yoshikawa, Taro Makino, Yuto Ohori, Masanao Fujiwara, Masanori Herbschleb, Ernst David Morioka, Naoya https://orcid.org/0000-0001-8007-2087 (unconfirmed) Ohki, Izuru https://orcid.org/0000-0002-0667-5936 (unconfirmed) Shirakawa, Masahiro Igarashi, Ryuji Nishikawa, Masahiro Mizuochi, Norikazu https://orcid.org/0000-0003-3099-3210 (unconfirmed) |
著者名の別形: | 張木, 音々 根本, 雅也 大堀, 真尚 藤原, 正規 森岡, 直也 白川, 昌宏 五十嵐, 龍治 水落, 憲和 |
キーワード: | Temperature metrology Color center laser spectroscopy Crystallographic defects Diamond Electron paramagnetic resonance spectroscopy Fluorescence, Materials treatment Optically detected magnetic resonance Nanomaterials Biosensors |
発行日: | May-2024 |
出版者: | AIP Publishing |
誌名: | APL Materials |
巻: | 12 |
号: | 5 |
論文番号: | 051102 |
抄録: | 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 0.36 K/√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. |
記述: | 微小ナノダイヤモンド量子センサで安定的に温度計測実現--細胞内などの微小領域での量子センシングに期待--.京都大学プレスリリース. 2024-05-16. |
著作権等: | © 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license. |
URI: | http://hdl.handle.net/2433/289128 |
DOI(出版社版): | 10.1063/5.0201154 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2024-05-16-0 |
出現コレクション: | 学術雑誌掲載論文等 |
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