All-solution-processed ultraflexible wearable sensor enabled with universal trilayer structure for organic...

Area of Science:

• Organic electronics
• Wearable technology
• Device fabrication

Background:

• Scalable manufacturing of ultrathin wearable electronics with diverse functions is crucial.
• Complex multilayer structures in organic optoelectronics hinder large-scale production.
• Need for robust and stable organic optoelectronic devices for practical applications.

Purpose of the Study:

• To establish all-solution processes for fabricating wearable, self-powered photoplethysmogram (PPG) sensors.
• To develop a simplified trilayer device structure for organic optoelectronics.
• To integrate organic optoelectronic devices with organic solar modules for self-powered systems.

Main Methods:

• Utilized all-solution processing techniques for device fabrication.
• Employed a trilayer device structure compatible with organic photovoltaics, photodetectors, and light-emitting diodes.
• Integrated an organic photoplethysmogram sensor array with an organic solar module.

Main Results:

• Achieved performance comparable to complex reference devices with evaporated electrodes.
• Demonstrated improved stability for the all-solution-processed devices.
• Successfully fabricated a self-powered health monitoring system using wearable organic optoelectronics.

Conclusions:

• All-solution processes enable high-throughput manufacture of complex, functional, ultrathin wearable electronic devices.
• The developed trilayer structure offers a scalable approach for organic optoelectronics.
• This work advances the development of self-powered health monitoring systems and other integrated electronic devices.