Flexible Strain Sensors Based on Printing Technology: Conductive Inks, Substrates, Printability, and Applications

Area of Science:

• Materials Science
• Electrical Engineering
• Manufacturing Technology

Background:

• Printing technology offers low-cost, high-volume manufacturing with minimal environmental impact.
• Flexible electronic devices, including sensors, are increasingly integrated into consumer products.
• Printed electronics and flexible strain sensors have gained significant academic and industrial interest.

Purpose of the Study:

• To systematically review the development of flexible strain sensors manufactured using printing technology.
• To analyze the critical factors influencing their sensing performance, focusing on printability.
• To explore conductive ink formulations, substrate materials, and application potential.

Main Methods:

• Literature review of printed flexible strain sensors.
• Analysis of conductive ink properties and substrate compatibility.
• Examination of printability challenges and their impact on sensor performance.

Main Results:

• Flexible strain sensors are developed using various printing techniques.
• Ink formulation and substrate selection significantly affect sensor performance and printability.
• Diverse applications across industries demonstrate the potential of these sensors.

Conclusions:

• Printing technology is crucial for advancing flexible strain sensor development.
• Addressing printability challenges is key to realizing large-scale applications.
• Further research can enhance sensing performance and expand the utility of printed electronics.