期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 6, 期 41, 页码 11118-11127出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tc02363h
关键词
-
资金
- NSF Division of Materials Research [1508592]
- NSF [DMR-0520404, DMR-1120296, DMR-1719875, ECS-0335765, ECS-9876771]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1508592] Funding Source: National Science Foundation
Self-assembly of nanomaterials with desired material properties requires assembly control from nanometer to millimeter scales. Here, hierarchical C-60 and C-70 films are assembled from the nanoscale to macroscale by combining co-solvent precipitation with electric-field directed assembly. Fullerene molecular crystals are grown via seeded co-solvent precipitation with mixed organic solvents and antisolvent 2-propanol. Rods of varying aspect ratios (1.7, 2 and 3.7) are prepared as a function of injection volume, fullerene type and solution concentration. Electric fields are applied to colloidal fullerene rods confined to two dimensions. The applied field induces dipolar forces, dielectrophoretic forces, and electrohydrodynamic flows. Frequency-dependent phase transitions occur at the critical Maxwell-Wagner crossover frequency, where the effective polarizability of the particles in the medium is substantially reduced, resulting in changes in structure. Partial order phases form as a function of field strength, frequency, and confinement including tetratic, smectic, centered rectangular and string fluids.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据