PE , What is the molecular formula of 6,6 diethoxy 1,1 diethyl 2,4 dimethyl 2,4 carbocyanine iodide ?
Umut
View attachment 52697CB4433150
Chemical Name: CRYPTOCYANINE
Molecular Formula: C25H25IN2
Formula Weight: 480.38
CAS No.: 4727-50-8 ....
I think it'd be really great to get a big list of sensitizers,
Ok, update to an old(ish) thread.
This dye, Erythrosine B (CAS: 54530) or Acid Red 51, is available here on eBay for chump change. This dye is in the Kodak list above.
I'm really interested in finding cheap sensitizing dyes for spectral sensitizing, and not necessarily because I am going to try to make a color-sensitive film tomorrow, but to put the possibilities forth so that anyone making emulsions might be inclined to experiment with this stuff down the road.
Sure they might not be the best or most efficient, but they will work, no?
Also, to make panchromatic dichromated gelatin for holograms they use methylene blue as a red sensitizer and Rhodamine G6 for blue/green. Do these dyes have any effect on silver-halides?
Here we report on the sensitization of semi-
conductor particles (TiO2 ) by organic dyes such
as xanthenes (rhodamine 101, fluorescein and 5(6)-
carboxyfluorescein) and azo dyes (alizarin yellow R,
alizarin yellow 2G and carboxyarsenazo). Photostabil-
ity of these dyes will be determined for possible use
as sensitizers for the nanocrystalline solar cell. The
role played by redox couple (e.g. I3 − /I− ) electrolyte
in regenerating the neutral sensitizer dye molecules,
and thus, stabilization of the dye molecule will be also
studied. The chosen dyes possessing carboxylate or
hydroxyl function groups that enable direct interaction
with the surface of TiO2 particles, thereby providing
a path for electron transfer from the excited dye
adsorbate to the semiconductor.....
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