Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, P.R. China.
J Am Chem Soc. 2010 Jul 7;132(26):8945-52. doi: 10.1021/ja910871s.
Well-defined periodic mesostructures of hydrophilic ultrathin Te nanowires with aspect ratios of at least 10(4) can be produced by the Langmuir-Blodgett technique without any extra hydrophobic pretreatment or functionalization. Packing the arrayed nanowire monolayers will allow construction of nanomesh-like mesostructures or more complex multilayered structures composed of ultrathin nanowires on a planar substrate. The well-organized monolayer of Te nanowires with periodic mesostructures can be readily used as a stamp to transfer such mesostructured nanopatterns to other substrates or can be embedded within a polymer matrix. The mesostructures of ultrathin Te nanowire films show reversibly switched photoelectric properties between the lower- and higher-conductivity states when the light is off and on, and the photocurrent is influenced by the light intensity and the number of mesostructured nanowire monolayer films. This method can be extended for fabrication of other mesostructured assemblies of ultrathin nanowires or nanotubes.
通过 Langmuir-Blodgett 技术，可以在无需任何额外疏水预处理或功能化的情况下，制备具有至少 10(4)纵横比的亲水超薄碲纳米线的明确定义的周期性介孔结构。将排列好的纳米线单层进行组装，将允许构建纳米网孔状介孔结构或更复杂的多层结构，这些结构由平面基底上的超薄纳米线组成。具有周期性介孔结构的组织良好的碲纳米线单层可以很容易地用作印章，将这种介孔纳米图案转移到其他基底上，或者可以嵌入聚合物基质中。当光照关闭和打开时，超薄碲纳米线薄膜的介孔结构在较低和较高电导率状态之间表现出可切换的光电性能，并且光电流受光强度和介孔纳米线单层薄膜数量的影响。这种方法可以扩展到其他超薄纳米线或纳米管的介孔组装体的制造。
