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Anisotropic photo- and electroluminescence in 3D opal-GaN-ZnS:Mn photonic crystal

The opal-GaN-ZnS:Mn composites with various GaN:ZnS ratios were synthesized by chemical bath deposition. These materials are perfect three-dimensional photonic crystals, which produce effective photo- and electroluminescence at room temperature. The emission spectra are considerably modified by the photonic crystal structure to become anisotropic in accordance with the photonic band gap angular dispersion.