| Wavelength Region |
Graphene oxide |
Europium oxide |
Europium nitrate |
Europium graphene oxide |
Terbium nitrate |
Terbium graphene oxide |
Samarium nitrate |
Samarium graphene oxide |
Gadolinium nitrate |
Gadolinium graphene oxide |
| 500-550 nm |
|
|
|
|
s 542 (h)
s 548 (l |
s 543 (l)
s 549 (h) |
|
|
|
|
| 551-600 nm |
s 595 (l) |
s 587 (l)
s 593(l) |
d 590-595 |
d/t 588-597 |
d 579-595 |
d 580-594 |
d 590-605 |
s 600 (l) |
s 587 (l) |
s 597 (h) |
| 601-650 nm |
|
s 610.5 (h)
s 614 (l)
s 623
s 630 |
s 614 (h)
s 618 (h) |
s 613 (l)
s 618 (h)
s 623(l) |
s 623 (l) |
d 615-625 |
s 614 (h)
d 640-655 |
s 625 (l) |
s 615 (h)
s 620 (h)
s 631 (l)
s 635 (l) |
s 635 (l) |
| 651-700 nm |
|
|
|
|
|
|
s 695 (l) |
s 658 (l)
s 662 (l)
s 698 (l) |
d 662-665 (l) |
s 663.5 (h) |
| 701-750 nm |
|
|
|
|
|
|
s 707 (l)
s 711 (h)
s 740 (l)
s 745 (l)
s 750 (l) |
s 709 (l)
s 713 (h)
s 738 (l)
s 740 (h) |
s 724 (h)
s 739 (l)
s 741 (h) |
s 706 (l)
s 724.5 (l)
s 741 (h)
s 742 (h) |
| 750- nm |
|
|
|
|
|
|
s 761 (l)
s 770 (l)
s 793 (l)
s 800 (l)
s 810 (l) |
s 752 (l)
s 762 (l)
s 771 (l)
s 797 (l)
s 802 (l)
s 811 (l) |
s 752 (l)
s 765 (l)
s 775 (l)
s 793 (l)
s 800 (l)
s 802 (l)
s 812 (l) |
s 753 (l)
s 765 (l)
s 796 (l)
s 802 (l)
s 812 (l) |
(s) singelet peak(d) doublet peaks (t) triplet peaks (h) high intensity peak (l) low intensity peak