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Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
Published on: June 18, 2013
Fullerene nanowires as a versatile platform for organic electronics.
Yuta Maeyoshi1, Akinori Saeki, Shotaro Suwa
1Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan.
Scientific Reports
|August 31, 2012
Summary
Researchers fabricated fullerene nanowires using a novel nanofabrication technique. This method enhances organic photovoltaic devices by improving charge transport in flexible nanoelectronics.
Area of Science:
- Materials Science
- Nanotechnology
- Organic Electronics
Background:
- Flexible and lightweight nanoelectronics require efficient charge carrier transport pathways.
- Organic semiconducting nanowires are crucial for advancing nanoelectronic devices.
Purpose of the Study:
- To report a universally applicable method for fabricating fullerene nanowires.
- To demonstrate the utility of these nanowires in organic photovoltaic cells.
Main Methods:
- Utilized the single particle nanofabrication technique (SPNT).
- Induced chain polymerization via a high-energy ion beam to form nanowires (8-11 nm radii).
- Fabricated bulk heterojunction organic photovoltaic cells using poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C(61) butyric acid methyl ester (PC(61)BM).
Main Results:
- Successfully fabricated fullerene nanowires from various derivatives (C(60), C(61), C(71), indene C(60) bis-adduct).
- Achieved precisely controlled length and density of PC(61)BM nanowires within photovoltaic cells.
- Demonstrated improved power conversion efficiency in inverted organic photovoltaic cells.
Conclusions:
- The SPNT offers a versatile platform for creating continuous, uniform n-type fullerene nanowires.
- This technique is applicable to a wide range of organic electronics.
- The fabricated nanowires significantly enhance charge transport and device performance.
