Journal
ADVANCED MATERIALS
Volume 31, Issue 18, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201808254
Keywords
crystalline fullerene fibers; photodetectors; spatial confinement; supramolecular gels
Categories
Funding
- National Natural Science Foundation of China [21473110, 21872091, 21825103, 21527802, 21801081, 51502167]
- 111 project
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1070]
Ask authors/readers for more resources
As a superstar organic semiconductor, fullerene (C-60) is versatile in nature for its multiple photoelectric applications. However, owing to its natural 0D structure, a challenge still remains unbeaten as to growth of 1D fullerene crystals with tunable sizes. Herein, reported is an efficient approach to grow C-60 as super-long crystalline fibers with tunable lengths and diameters in supramolecular gel by synergic changes of anti-solvent, gel length, crystallization time or fullerene concentration. As a result, the crystalline C-60 fibers can be modulated to as long as 70 mm and 70 000 in their length-to-width ratio. In this case, the gel 3D network provides spatial confinements for the growth of 1D crystal along the directional dispersion of anti-solvent. The fabricated fullerene device exhibits high responsivity (2595.6 mA W-1) and high specific detectivity (2.7 x 10(12) Jones) at 10 V bias upon irradiation of 400 n m incident light. The on/off ratio and its quantum efficiency are near to 540 and about 800%, respectively, and importantly, its photoelectric property remains very stable after storage in air for six months. Therefore, spatially confined growth of fullerene in supramolecular gels will be another crucial strategy to synthesize 1D semiconductor crystals for photoelectrical device applications in near future.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available