Electrolytic coloration of O2-doped NaCl crystals |
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| Authors: | Fang Qin Cuiying Song Meili Guo Jia Liu |
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| Affiliation: | a Department of Physics, Tianjin University, Tianjin 300072, China
b School of Science, Tianjin University of Commerce, Tianjin 300134, China |
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| Abstract: | O22−-doped NaCl crystals are colored electrolytically by using a pointed cathode and a flat anode at various temperatures and voltages, which mainly benefit from appropriate coloration temperatures and voltages as well as anode structure of used electrolysis apparatus. Characteristic OH−, U, V2m, UA, V2, V3, O2−-Va+ complex, F, R1, R2 and M absorption bands are observed in absorption spectra of the colored crystals. Production and conversion of color centers in electrolytic coloration is explained. Current-time curves for electrolytic colorations and their relationships with electrolytic colorations were given. |
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| Keywords: | 61.70.At 61.70.Dx 78.50.&minus w |
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