Growth and microstructures of ZnO – WO3 and TiO2 – WO3 eutectic crystals

Katarzyna B. Kołodziejak 1Dorota A. Pawlak 1Krzysztof Rozniatowski 2Barbara Kaczmarek 1Ewa Starnawska 3Dariusz Artel 1Wlodzimierz Szyrski 1Tadeusz Łukasiewicz 1

1. Institute of Electronic Materials Technology (ITME), Wólczyńska 133, Warszawa 01-919, Poland
2. Warsaw University of Technology, Faculty of Materials Science and Engineering (InMat), Wołoska 141, Warszawa 02-507, Poland
3. Polish Geological Institute (PGI), Rakowiecka 4, Warszawa 00-975, Poland


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).

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Presentation: Poster at Joint Fith International Conference on Solid State Crystals & Eighth Polish Conference on Crystal Growth, by Katarzyna B. Kołodziejak
See On-line Journal of Joint Fith International Conference on Solid State Crystals & Eighth Polish Conference on Crystal Growth

Submitted: 2007-01-23 12:43
Revised:   2009-06-07 00:44
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