The self – organized micro – structures of ZnO – WO₃ and TiO₂ – WO₃ will be presented. Their growth is based on directional solidification of binary eutectics by the micro-pulling down method. In the case of ZnO – WO₃ eutectic, the pattern phase is formed by ZnO and the matrix phase is formed by ZnWO₄. Recently it has been discovered that ZnO – WO₃ eutectic is a blue phosphor material with the prospective use in advanced flat panel display and lighting applications ( a micro/ nanostructured light source). [1] This property could be used as an advantage in looking for metamaterials applications. The qualitative and quantitative analysis of the microstructures obtained with different pulling rate, and cathodoluminescence of the eutectics will be presented.

[1] H. Hayashi, A. Ishizaka, M. Haemori, H. Koinuma, Appl. Phys. Lett., 82, 1365 (2003).