Fullerene Nanowires: Self-Assembled Structures of a Low-Molecular-Weight Organogelator Fabricated by the Langmuir-Blodgett Method
作者:Ryo Tsunashima、Shin-ichiro Noro、Tomoyuki Akutagawa、Takayoshi Nakamura、Hiroko Kawakami、Kazunori Toma
DOI:10.1002/chem.200800493
日期:2008.9.19
Fullerene derivative C60TT, which is substituted with the low-molecular-weight organogelator tris(dodecyloxy)benzamide, formed nanowire structures on application of the Langmuir-Blodgett (LB) method. The surface morphology of the C60TT LB film was dependent on the holding time before deposition at a surface pressure of 5 mN m(-1); it changed from a homogeneous monolayer to a bilayer fibrous structure
富勒烯衍生物C60TT(用低分子量有机胶凝剂三(十二烷氧基)苯甲酰胺取代)在应用Langmuir-Blodgett(LB)方法时形成了纳米线结构。C60TT LB膜的表面形态取决于在5 mN m(-1)的表面压力下沉积之前的保持时间。它通过纤维单层结构从均质单层结构变为双层纤维结构,估计其尺寸为高1.2纳米,宽8纳米,长5-10微米。从结构和光谱数据推断,富勒烯部分的紧密堆积与单层纤维结构内的分子间氢键一起发生。LB膜的形态变化是由Avrami理论动力学解释的,基于在空气/水界面的单层表面积的减少。保持时间从0到0.2 h的准一维纤维单层结构的生长被认为是界面控制的过程,而从0.2到18 h的准一维双层纤维结构的生长被认为是界面控制的过程。成为扩散控制的过程。