Activators of photoluminescence in calcite: evidence from high-resolution, laser-excited luminescence spectroscopy
Chemical Geology
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Abstract
Laser-excited luminescence spectroscopy of a red-algal, biogenic calcite and a synthetic Mn-calcite can make the distinction between organic and trace-element activators of photoluminescence. Organic-activated photoluminescence in biogenic calcite is characterized by significant peak shifts and increasing intensity with shorter-wavelength excitation and by significant decreases in intensity after heating to ??? 400??C. In contrast, Mn-activated photoluminescence shows no peak shift, greatest intensity under green excitation and limited changes after heating. Examination of samples with a high-sensitivity spectrometer using several wavelengths of exciting light is necessary for identification of photoluminescence activators. ?? 1990.
Suggested Citation
Pedone, V., Cercone, K., and Burruss, R., 1990, Activators of photoluminescence in calcite: evidence from high-resolution, laser-excited luminescence spectroscopy: Chemical Geology, v. 88, no. 1-2, p. 183-190, https://doi.org/10.1016/0009-2541(90)90112-K.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Activators of photoluminescence in calcite: evidence from high-resolution, laser-excited luminescence spectroscopy |
| Series title | Chemical Geology |
| DOI | 10.1016/0009-2541(90)90112-K |
| Volume | 88 |
| Issue | 1-2 |
| Year Published | 1990 |
| Language | English |
| Publisher | Elsevier |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Chemical Geology |
| First page | 183 |
| Last page | 190 |