Abstract
Self-organization of nano-size spherical particles in opal-like structures has been demonstrated to be a powerful mean to build three-dimensional (3D) photonic crystal. We here present a simplified sedimentation process leading to photonic crystal layer with a non-absolute bandgap in the visible range. The stacking organization is cross checked directly by classical optical microscopy (COM), atomic force microscopy (AFM) and scanning electron microscopy (SEM), giving a detailed scheme of the short range and long range organization, and indirectly by reflection/transmission spectroscopy for different incidence angles. The results show a very good resonance associated with a low cost deposition technique. The implementation of our method for further application like photonic waveguides is also discussed.
Original language | English |
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Pages (from-to) | 281-288 |
Number of pages | 8 |
Journal | Applied Surface Science |
Volume | 217 |
Issue number | 1-4 |
DOIs | |
State | Published - 15 Jul 2003 |
Keywords
- Defects
- Opal
- Photonic crystals
- Self-assembly
- Spectroscopy