Ce-surfactant lamellar assemblies with strong UV/visible emission and controlled nanostructures

作者：Taniguchi Takaaki^*; Echikawa Makoto; Naito Yuki; Tateishi Hikaru; Funatsu Asami; Ogata Chikako; Komatsubara Yukihiro; Matsushita Nobuhiro; Koinuma Michio; Matsumoto Yasumichi

来源：Journal of Materials Chemistry, 2012, 22(38): 20358-20362.

DOI：10.1039/c2jm33265e

We describe self-organization-reorganization of a lanthanide (Ln)-surfactant lamellar hybrid with intense photoluminescence and controlled nanostructures. We reveal that UV luminescence exhibited by a Ce-dodecyl sulfate (DS) lamellar hybrid offers the maximum quantum yield (QY) of 90% among all types of Ce-organic hybrid materials. In addition, Ce-Tb dodecyl phosphate (DP) lamellar hybrids exhibit bright green emission due to the two-dimensional Ce3+-Tb3+ energy transfer (ET) process in Ln-PO4 layers. Furthermore, a Ce-DS film with a highly oriented nanostructure and Ce-Tb-DP colloidal nanosheets are fabricated through simple and effective reorganization routes. The concept of %26quot;reorganization routes%26quot; opens up new pathways to general-and large-scale fabrication of two-dimensional nanomaterials on the basis of metal-surfactant assemblies with a variety of physical and chemical properties.

• 出版日期2012