Large-Area Transfer of Nanometer-Thin C₆₀ Films

Area of Science:

• Materials Science
• Nanotechnology
• Organic Chemistry

Background:

• Fullerenes (C₆₀) are promising building blocks for advanced carbon materials due to their defined structures and scalability.
• Fabricating large-area films with controlled thickness and morphology is essential for fullerene-based devices.

Purpose of the Study:

• To present strategies for solid-state transfer of nanometer-thin C₆₀ films onto various substrates.
• To demonstrate the fabrication of centimeter-wide graphene/C₆₀/graphene heterostructures.
• To explore the versatility of the transfer method for chemically modified fullerene films and their applications.

Main Methods:

• Solid-state transfer of C₆₀ molecular films with centimeter lateral dimensions and 1-20 nm thickness.
• Layer-by-layer stacking of C₆₀ and graphene films.
• Transfer of chemically modified C₆₀ films (oxygenated, C₆₀Pd organometallic polymers).

Main Results:

• Successful transfer of large-area, ultrathin C₆₀ films onto diverse substrates.
• Fabrication of centimeter-wide graphene/C₆₀/graphene heterostructures.
• Demonstration of direct electrocatalytic probing of C₆₀ and C₆₀Pd films for hydrogen evolution.

Conclusions:

• The solid-state transfer strategy offers precise control over large-area, ultrathin C₆₀ films.
• This method provides a versatile platform for fullerene chemistry and the synthesis of artificial carbon structures.
• Enables direct investigation of fullerene-based materials' properties, such as electrocatalysis.