Talapin Dmitri V, Shevchenko Elena V, Murray Christopher B, Kornowski Andreas, Förster Stephan, Weller Horst
Contribution from the Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
J Am Chem Soc. 2004 Oct 13;126(40):12984-8. doi: 10.1021/ja046727v.
We demonstrate the self-organization of CdSe nanorods into nematic, smectic, and crystalline solids. Layered colloidal crystals of CdSe nanorods grow by slow destabilization of a nanocrystal solution upon allowing the diffusion of a nonsolvent into the colloidal solution of nanocrystals. The colloidal crystals of nanorods show characteristic birefringence, which we assign to specific spherulite-like texture of each nanorod assembly. To demonstrate the general character of nanorod self-assembly technique, CdSe/CdS heterostructure nanorods were organized into highly luminescent superlattices.
我们展示了CdSe纳米棒自组装成向列相、近晶相和晶体固体的过程。CdSe纳米棒的层状胶体晶体是通过在纳米晶体胶体溶液中允许非溶剂扩散，使纳米晶体溶液缓慢失稳而生长的。纳米棒的胶体晶体表现出特征双折射，我们将其归因于每个纳米棒组件特定的球晶状织构。为了证明纳米棒自组装技术的通用性，CdSe/CdS异质结构纳米棒被组装成高发光超晶格。
