Identification of CaCuSi4O10 (Egyptian blue) in the 'Birch. Spring' painting by Robert Falk (1907) using photoluminescence
| Autor: | Tatyana V. Yuryeva, Svetlana A. Pisareva, Ekaterina A. Morozova, Irina F. Kadikova, Vladimir A. Yuryev, Ilya B. Afanasyev, Irina N. Shibanova |
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| Rok vydání: | 2021 |
| Předmět: |
Archeology
Materials science Photoluminescence Micro analysis Materials Science (miscellaneous) Analytical chemistry 02 engineering and technology Conservation 01 natural sciences Egyptian blue chemistry.chemical_compound Pigment Spectral analysis Spectroscopy Blue light Painting 010401 analytical chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemistry (miscellaneous) visual_art visual_art.visual_art_medium 0210 nano-technology Luminescence General Economics Econometrics and Finance |
| Zdroj: | Journal of Cultural Heritage. 50:126-138 |
| ISSN: | 1296-2074 |
| DOI: | 10.1016/j.culher.2021.05.005 |
| Popis: | We have detected Egyptian blue pigment in the paint layer of the “Birch. Spring” painting by Robert Falk (1907); we have also found this pigment in the paints of the sketch drawn on the canvas back side. This is probably the first discovery of Egyptian blue in a 20th century work of art. We have analyzed a modern commercial Egyptian blue pigment (Kremer) and found it to be suitable as a standard for photoluminescence spectral analysis. The characteristic photoluminescence band of CaCuSi 4 O 10 reaches maximum at the wavelength of about 910 nm. The luminescence is efficiently excited by incoherent green or blue light. The study demonstrates that the photoluminescence spectral micro analysis using excitation by incoherent light can be efficiently used for the identification of luminescent pigments in paint layers of artworks. |
| Databáze: | OpenAIRE |
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