An Overview of Flexible Sensors: Development, Application, and Challenges

Area of Science:

• Materials Science
• Electronics Engineering
• Sensor Technology

Background:

• Flexible electronics, including smart electronic skin and wearable devices, are rapidly advancing.
• Flexible sensors are crucial components for detecting external stimuli and physiological parameters in these systems.
• They offer advantages over rigid sensors, such as simpler fabrication, higher efficiency, and better adaptability to irregular surfaces.

Purpose of the Study:

• To review recent advancements in flexible sensors for humidity and strain/pressure detection.
• To highlight the materials, working mechanisms, structures, and fabrication methods of these sensors.
• To discuss their applications and provide future perspectives, including market analysis.

Main Methods:

• Literature review of recent studies on flexible sensors.
• Analysis of sensory materials, working principles, and structural designs.
• Examination of fabrication techniques and application case studies.

Main Results:

• Flexible sensors demonstrate high efficiency and reliability in detecting humidity, strain, and pressure.
• Various materials and fabrication methods enable tailored sensor performance for specific applications.
• These sensors show significant potential for integration into wearable and smart electronic systems.

Conclusions:

• Flexible sensors are a vital technology for the future of smart electronics and wearables.
• Continued research into novel materials and fabrication techniques will drive further innovation.
• The field is poised for significant growth, with increasing market share anticipated.