Visual properties of some luminescent materials
- Visual properties of some luminescent materials
-
Visual properties of some luminescent materials
phosphor emission
(
phosphor/activator; coactivator) colour* persistence
rhombohedral zinc orthosilicate/manganese 0.3%; 1,200 degrees C; 60 min, slow cooling green
(525 nm) short
(0.01 sec)
beta zinc orthosilicate/manganese 0.3%; 1,600 degrees C; 10 min, quench cooling yellow
(610 nm) short
(0.01 sec)
cubic zinc sulfide/copper 0.03%; chloride; 950 degrees C; 10 min, slow cooling green-blue
(516 nm) long
hexagonal zinc sulfide/copper 0.03%; chloride; 1,250 degrees C; 10 min, slow cooling green
(528 nm) very long
(up to 24 hours)
*The wavelengths of the respective emission maxima are given in parentheses.
1 nanometre (
nm) = 0.000000001 metre = 1 millimicron = 10 angstroms.
See as table:
* * *
Universalium.
2010.
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