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Title: Microscale-Resolution Thermal Mapping Using a Flexible Platform of Patterned Quantum Sensors

Journal Article · · Nano Letters
 [1];  [1];  [1];  [2]; ORCiD logo [2];  [2]
  1. Univ. of Chicago, Chicago, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Chicago, Chicago, IL (United States)

Here, temperature sensors with micro- and nanoscale spatial resolution have long been explored for their potential to investigate the details of physical systems at an unprecedented scale. In particular, the rapid miniaturization of transistor technology, with its associated steep boost in power density, calls for sensors that accurately monitor heating distributions. Here, we report on a simple and scalable fabrication approach, based on directed self-assembly and transfer-printing techniques, to constructing arrays of nanodiamonds containing temperature-sensitive fluorescent spin defects. The nano-particles are embedded within a low-thermal-conductivity matrix that allows for repeated use on a wide range of systems with minimal spurious effects. Additionally, we demonstrate access to a wide spectrum of array parameters ranging from sparser single-particle arrays, with the potential for quantum computing applications, to denser devices with 98 ± 0.8% yield and stronger photoluminescence signals, ideal for temperature measurements. With these, we experimentally reconstruct the temperature map of an operating coplanar waveguide to confirm the accuracy of these platforms.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Army Research Office; Air Force Research Laboratory (AFRL), Air Force Office of Scientific Research (AFOSR)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1474134
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 8 Vol. 18; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

All-Optical Cryogenic Thermometry Based on Nitrogen-Vacancy Centers in Nanodiamonds journal July 2019