PEDOT:PSS-Based Temperature-Detection Thread for Wearable Devices

Area of Science:

• Materials Science
• Polymer Science
• Wearable Technology

Background:

• Wearable sensors require robust and flexible temperature-sensing elements.
• Conducting polymers offer unique electronic properties for sensor development.

Purpose of the Study:

• To develop a novel wearable temperature-sensing element using dip-dyed threads.
• To characterize the performance of the PEDOT:PSS-dyed textile for temperature detection.

Main Methods:

• Dip dyeing textile threads in a poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) solution.
• Characterizing the temperature-dependent resistance of the dyed threads.

Main Results:

• The PEDOT:PSS-dyed threads exhibited negative temperature coefficient (NTC) characteristics.
• Achieved a high sensitivity of 167.1 Ω/°C with 99.8% linearity across a -50 °C to 80 °C range.

Conclusions:

• The fabricated temperature-detection thread is a promising component for wearable electronic devices.
• Potential for widespread adoption in fitness, healthcare, industrial, and military applications.