The yellow dye in Jim Browning's Matrix Film is not for halation. It is to limit penetration of light into the coating, which is exposed from the base, so that the image is sharp and limited to the base region. As the emulsion hardens in the tanning developer, it then adheres strongly to the base.
As for dyes, I am investigating getting about 6 grams or so of 3 water soluble dyes.
1. Green sensitive.
2. Red sensitive.
3. Pan sensitive.
An IR dye may come later. This is due to the fact that IR dyes are on the Honeywell site.
The dyes I select will not contain Se, nor will they be subject to "J" aggregation.
More information in a few weeks.