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Unusual Optical Properties of Mn‐doped ZnO: The Search for a New Red Pigment—A Combined Experimental and Theoretical Study |
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| Authors: | Hilkka Saal Michael Binnewies Prof. Dr. Marius Schrader Dr. Alexander Börger Dr. Klaus‐Dieter Becker Prof. Dr. Viatcheslav A. Tikhomirov Dr. Karl Jug Prof. Dr. |
| Affiliation: | 1. Institut für Anorganische Chemie, Leibniz Universit?t Hannover, Hannover (Germany), Fax: (+49)?511‐762‐2254;2. Institut für Physikalische und Theoretische Chemie, TU Braunschweig, Hans‐Sommer‐Str. 10, 38106 Braunschweig (Germany);3. Theoretische Chemie, Leibniz Universit?t Hannover, Callinstr. 3A, 30167 Hannover (Germany) |
| Abstract: | A pigment of your imagination : A range of polycrystalline solid solutions of a zinc‐rich Znx?1MnxO system (see figure) have been prepared and studied in terms of their colour, diffuse reflectance spectra, Mn valence state and electronic structure. The intense optical absorption arises from Mn2+ doping and is thought to be due to forbidden or partially forbidden transitions between the valence and the conduction band.  |
| Keywords: | bandgap energies doped oxides dyes/pigments semiempirical calculations solid‐state structures |