Solid state ionics enabled ultra-sensitive detection of thermal trace with 0.001K resolution in deep sea

Yucheng Zhang, Dekai Ye, Mengxue Li, Xi Zhang, Chong-an Di () and Chao Wang ()
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Yucheng Zhang: Tsinghua University
Dekai Ye: Chinese Academy of Sciences
Mengxue Li: Tsinghua University
Xi Zhang: Tsinghua University
Chong-an Di: Chinese Academy of Sciences
Chao Wang: Tsinghua University

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract The deep sea remains the largest uncharted territory on Earth because it’s eternally dark under high pressure and the saltwater is corrosive and conductive. The harsh environment poses great difficulties for the durability of the sensing method and the device. Sea creatures like sharks adopt an elegant way to detect objects by the tiny temperature differences in the seawater medium using their extremely thermo-sensitive thermoelectric sensory organ on the nose. Inspired by shark noses, we designed and developed an elastic, self-healable and extremely sensitive thermal sensor which can identify a temperature difference as low as 0.01 K with a resolution of 0.001 K. The sensor can work reliably in seawater or under a pressure of 110 MPa without any encapsulation. Using the integrated temperature sensor arrays, we have constructed a model of an effective deep water mapping and detection device.

Date: 2023
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DOI: 10.1038/s41467-022-35682-8

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