Precise temperature sensing with nanoscale thermal sensors based on diamond NV centers

Sunuk Choe, Jungbae Yoon, Myeongwon Lee, Jooeon Oh, Dongkwon Lee, Heeseong Kang, Chul Ho Lee, Donghun Lee

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Sensing temperature with high precision and high spatial resolution is challenging and requires novel temperature measurement techniques. Recently, an atomic-scale thermal sensor based on a defect center in diamond, i.e., a nitrogen-vacancy (NV) center, has been developed, and successfully demonstrated temperature sensing at the mK level and a few tens of nanometers. Here we discuss a temperature sensing mechanism based on the NV center in both experimental and theoretical aspects. At room temperature, we show temperature sensing over a wide-range of temperatures ∼90 K with a precision of 0.2 K. We also map temperature gradients in a bridge-like device a few hundreds of micrometers long. In addition, we theoretically compare three sensing protocols and analyze temperature sensitivity to find optimal measurement time and NV concentration for the ensemble measurement.

Original languageEnglish
Pages (from-to)1066-1070
Number of pages5
JournalCurrent Applied Physics
Volume18
Issue number9
DOIs
Publication statusPublished - 2018 Sept

Bibliographical note

Funding Information:
This work is supported by the Basic Science Research Program through the National Research Foundation of Korea ( NRF ) funded by the Ministry of Education ( NRF-2016R1D1A1A02937119 ) and the KIST Institutional Program (Project No. 2E26681 ). C.-H. L acknowledges the KU-KIST School Project and the Korea University Future Research Grant.

Funding Information:
This work is supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1D1A1A02937119) and the KIST Institutional Program (Project No. 2E26681). C.-H. L acknowledges the KU-KIST School Project and the Korea University Future Research Grant.

Publisher Copyright:
© 2018 Korean Physical Society

Keywords

  • Diamond NV center
  • Nanodiamond
  • Temperature sensing

ASJC Scopus subject areas

  • General Materials Science
  • General Physics and Astronomy

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