Table 2.

Chemical names, absorption range [nm] and maximum of absorption [nm] of photoinitiators used in review.

No.	Chemical Name	Absorption Range [nm]	Absorbance Maximum [nm]
1.	2,4,6—trimethylbenzoyl-diphenylphosphine oxide	380–425	400
2.	Bisacylphosphine oxide	365–416	400
3.	Benzophenone	240–370	294
4.	Camphorquinone	360–510	468
5.	9,10-Phenanthrenequinone	No data	420
6.	1-phenyl-1,2 propanedione	300–400	410
7.	9-(2,4,6-trimethylbenzoyl)-9-oxytho- 9-phosphafuluorene	No data	No data
8.	9-(p-toluyl)-9-oxytho-9-phosphafuluorene	No data	No data
9.	Benzoyltrimethylgermane	No data	411
10.	Dibenzoyldiethylgermane	No data	418
11.	Dibenzoyl germanium (Ivocerin)	390–445	418
12.	(7-ethoxy-4-methylcoumarin-3-yl) phenyliodonium hexafluoroantimonate	No data	347