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Temperature dependent Raman spectroscopy and sensing performance of 2D black phosphorus
Jiangtao Chen1, Xinyi Wang1, Tiancheng Song1
1Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China.
The Journal of Chemical Physics
|July 15, 2024
Summary
Black phosphorus (BP) shows promise as a temperature sensing layer for wearable electronics. BP-based sensors exhibit high sensitivity and reproducibility for monitoring body temperature.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Monitoring temperature is crucial for wearable electronic devices.
- Layered black phosphorus (BP) possesses favorable thermal stability and semiconductor characteristics, making it a potential candidate for temperature sensing applications.
Purpose of the Study:
- To investigate the temperature sensing properties of black phosphorus (BP).
- To evaluate the feasibility of BP as a sensitive layer in flexible wearable electronic devices for monitoring human body temperature.
Main Methods:
- In situ Raman spectroscopy and X-ray diffraction were employed to study BP.
- Flexible sensors utilizing BP were fabricated and tested for temperature response between 6-38°C.
Main Results:
- BP-based temperature sensors demonstrated a negative temperature coefficient (NTC).
- The sensors exhibited high sensitivity, reproducibility, and reliable performance across a wide temperature range.
- Successful demonstration of BP's potential for monitoring human body part temperatures.
Conclusions:
- Black phosphorus is a viable material for developing sensitive and reproducible temperature sensors for wearable electronics.
- This research highlights the potential of layered materials like BP in advancing wearable technology.
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