abstract |
A.LUMINOPHORE. B. THEY ARE CONSTITUTED BY RARE EARTH METAL SALTS OF ORGANIC CARBOXYLIC ACIDS, OF FORMULA A (COO) Z IN WHICH A IS AN ORGANIC GROUP CAPABLE OF COMBINING WITH THE CARBOXY GROUP AND Z IS A RARE EARTH METAL COMPLEMENT AND CALCIUM, STRONTIUM OR BARIUM AND 1 AND M ARE NUMBERS. C. OPTOELECTRONICS INDUSTRY. |