Double anisotropic electrically conductive flexible Janus-typed membranes

Area of Science:

• Materials Science
• Nanotechnology
• Conductive Polymers

Background:

• Anisotropic conductive films (ACFs) are crucial for electronic applications.
• Developing materials with multiple functionalities, such as electrical conductivity and fluorescence, remains a challenge.

Purpose of the Study:

• To propose, design, and fabricate novel flexible Janus-typed membranes for the first time.
• To achieve simultaneous double electrical conductive anisotropy and fluorescence in a single material.

Main Methods:

• Fabrication of Janus nanobelts with conductive and insulative-fluorescent sides via electrospinning.
• Arrangement of nanobelts into parallel arrays using a rotary drum collector.
• Secondary electrospinning to create the final Janus-typed membrane.

Main Results:

• Successfully fabricated flexible Janus-typed membranes with ordered Janus nanobelts.
• Demonstrated simultaneous anisotropic electrical conduction on both sides, with perpendicular conductive directions.
• Tuned fluorescence and electrical properties by adjusting Europium(III) 2-ethylhexanoate complex and polyaniline (PANI) content.

Conclusions:

• The study presents a novel Janus-typed membrane with integrated double electrical conductive anisotropy and fluorescence.
• This design offers a unique left-to-right structure with perpendicular conductive pathways.
• The fabrication technique and design philosophy support the development of multifunctional nanostructures.